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nessusThis script is Copyright (C) 2010-2021 and is owned by Tenable, Inc. or an Affiliate thereof.DEBIAN_DSA-1862.NASL
HistoryFeb 24, 2010 - 12:00 a.m.

Debian DSA-1862-1 : linux-2.6 - privilege escalation

2010-02-2400:00:00
This script is Copyright (C) 2010-2021 and is owned by Tenable, Inc. or an Affiliate thereof.
www.tenable.com
35

7.2 High

CVSS2

Attack Vector

LOCAL

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

AV:L/AC:L/Au:N/C:C/I:C/A:C

7.8 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

0.0005 Low

EPSS

Percentile

17.4%

A vulnerability has been discovered in the Linux kernel that may lead to privilege escalation. The Common Vulnerabilities and Exposures project identifies the following problem :

  • CVE-2009-2692 Tavis Ormandy and Julien Tinnes discovered an issue with how the sendpage function is initialized in the proto_ops structure. Local users can exploit this vulnerability to gain elevated privileges.
#%NASL_MIN_LEVEL 70300
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were  
# extracted from Debian Security Advisory DSA-1862. The text 
# itself is copyright (C) Software in the Public Interest, Inc.
#

include('deprecated_nasl_level.inc');
include('compat.inc');

if (description)
{
  script_id(44727);
  script_version("1.17");
  script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/04");

  script_cve_id("CVE-2009-2692");
  script_bugtraq_id(36038);
  script_xref(name:"DSA", value:"1862");

  script_name(english:"Debian DSA-1862-1 : linux-2.6 - privilege escalation");
  script_summary(english:"Checks dpkg output for the updated package");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote Debian host is missing a security-related update."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"A vulnerability has been discovered in the Linux kernel that may lead
to privilege escalation. The Common Vulnerabilities and Exposures
project identifies the following problem :

  - CVE-2009-2692
    Tavis Ormandy and Julien Tinnes discovered an issue with
    how the sendpage function is initialized in the
    proto_ops structure. Local users can exploit this
    vulnerability to gain elevated privileges."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://security-tracker.debian.org/tracker/CVE-2009-2692"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.debian.org/security/2009/dsa-1862"
  );
  script_set_attribute(
    attribute:"solution", 
    value:
"Upgrade the linux-2.6 and user-mode-linux packages.

For the oldstable distribution (etch), this problem will be fixed in
updates to linux-2.6 and linux-2.6.24.

For the stable distribution (lenny), this problem has been fixed in
version 2.6.26-17lenny2.

Note: Debian carefully tracks all known security issues across every
linux kernel package in all releases under active security support.
However, given the high frequency at which low-severity security
issues are discovered in the kernel and the resource requirements of
doing an update, updates for lower priority issues will normally not
be released for all kernels at the same time. Rather, they will be
released in a staggered or 'leap-frog' fashion."
  );
  script_set_cvss_base_vector("CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:C");
  script_set_cvss_temporal_vector("CVSS2#E:POC/RL:OF/RC:C");
  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");
  script_set_attribute(attribute:"exploit_framework_core", value:"true");
  script_set_attribute(attribute:"exploited_by_malware", value:"true");
  script_set_attribute(attribute:"metasploit_name", value:'Linux Kernel Sendpage Local Privilege Escalation');
  script_set_attribute(attribute:"exploit_framework_metasploit", value:"true");
  script_set_attribute(attribute:"exploit_framework_canvas", value:"true");
  script_set_attribute(attribute:"canvas_package", value:'CANVAS');
  script_cwe_id(119);

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:linux-2.6");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:5.0");

  script_set_attribute(attribute:"patch_publication_date", value:"2009/08/14");
  script_set_attribute(attribute:"plugin_publication_date", value:"2010/02/24");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2010-2021 and is owned by Tenable, Inc. or an Affiliate thereof.");
  script_family(english:"Debian Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/Debian/release", "Host/Debian/dpkg-l");

  exit(0);
}


include("audit.inc");
include("debian_package.inc");


if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
if (!get_kb_item("Host/Debian/release")) audit(AUDIT_OS_NOT, "Debian");
if (!get_kb_item("Host/Debian/dpkg-l")) audit(AUDIT_PACKAGE_LIST_MISSING);


flag = 0;
if (deb_check(release:"5.0", prefix:"linux-doc-2.6.26", reference:"2.6.26-17lenny2")) flag++;
if (deb_check(release:"5.0", prefix:"linux-headers-2.6.26-2-486", reference:"2.6.26-17lenny2")) flag++;
if (deb_check(release:"5.0", prefix:"linux-headers-2.6.26-2-686", reference:"2.6.26-17lenny2")) flag++;
if (deb_check(release:"5.0", prefix:"linux-headers-2.6.26-2-686-bigmem", reference:"2.6.26-17lenny2")) flag++;
if (deb_check(release:"5.0", prefix:"linux-headers-2.6.26-2-all", reference:"2.6.26-17lenny2")) flag++;
if (deb_check(release:"5.0", prefix:"linux-headers-2.6.26-2-all-alpha", reference:"2.6.26-17lenny2")) flag++;
if (deb_check(release:"5.0", prefix:"linux-headers-2.6.26-2-all-amd64", reference:"2.6.26-17lenny2")) flag++;
if (deb_check(release:"5.0", prefix:"linux-headers-2.6.26-2-all-armel", reference:"2.6.26-17lenny2")) flag++;
if (deb_check(release:"5.0", prefix:"linux-headers-2.6.26-2-all-hppa", reference:"2.6.26-17lenny2")) flag++;
if (deb_check(release:"5.0", prefix:"linux-headers-2.6.26-2-all-i386", reference:"2.6.26-17lenny2")) flag++;
if (deb_check(release:"5.0", prefix:"linux-headers-2.6.26-2-all-ia64", reference:"2.6.26-17lenny2")) flag++;
if (deb_check(release:"5.0", prefix:"linux-headers-2.6.26-2-all-powerpc", reference:"2.6.26-17lenny2")) flag++;
if (deb_check(release:"5.0", prefix:"linux-headers-2.6.26-2-all-s390", reference:"2.6.26-17lenny2")) flag++;
if (deb_check(release:"5.0", prefix:"linux-headers-2.6.26-2-alpha-generic", reference:"2.6.26-17lenny2")) flag++;
if (deb_check(release:"5.0", prefix:"linux-headers-2.6.26-2-alpha-legacy", reference:"2.6.26-17lenny2")) flag++;
if (deb_check(release:"5.0", prefix:"linux-headers-2.6.26-2-alpha-smp", reference:"2.6.26-17lenny2")) flag++;
if (deb_check(release:"5.0", prefix:"linux-headers-2.6.26-2-amd64", reference:"2.6.26-17lenny2")) flag++;
if (deb_check(release:"5.0", prefix:"linux-headers-2.6.26-2-common", reference:"2.6.26-17lenny2")) flag++;
if (deb_check(release:"5.0", prefix:"linux-headers-2.6.26-2-common-openvz", reference:"2.6.26-17lenny2")) flag++;
if (deb_check(release:"5.0", prefix:"linux-headers-2.6.26-2-common-vserver", reference:"2.6.26-17lenny2")) flag++;
if (deb_check(release:"5.0", prefix:"linux-headers-2.6.26-2-common-xen", reference:"2.6.26-17lenny2")) flag++;
if (deb_check(release:"5.0", prefix:"linux-headers-2.6.26-2-iop32x", reference:"2.6.26-17lenny2")) flag++;
if (deb_check(release:"5.0", prefix:"linux-headers-2.6.26-2-itanium", reference:"2.6.26-17lenny2")) flag++;
if (deb_check(release:"5.0", prefix:"linux-headers-2.6.26-2-ixp4xx", reference:"2.6.26-17lenny2")) flag++;
if (deb_check(release:"5.0", prefix:"linux-headers-2.6.26-2-mckinley", reference:"2.6.26-17lenny2")) flag++;
if (deb_check(release:"5.0", prefix:"linux-headers-2.6.26-2-openvz-686", reference:"2.6.26-17lenny2")) flag++;
if (deb_check(release:"5.0", prefix:"linux-headers-2.6.26-2-openvz-amd64", reference:"2.6.26-17lenny2")) flag++;
if (deb_check(release:"5.0", prefix:"linux-headers-2.6.26-2-orion5x", reference:"2.6.26-17lenny2")) flag++;
if (deb_check(release:"5.0", prefix:"linux-headers-2.6.26-2-parisc", reference:"2.6.26-17lenny2")) flag++;
if (deb_check(release:"5.0", prefix:"linux-headers-2.6.26-2-parisc-smp", reference:"2.6.26-17lenny2")) flag++;
if (deb_check(release:"5.0", prefix:"linux-headers-2.6.26-2-parisc64", reference:"2.6.26-17lenny2")) flag++;
if (deb_check(release:"5.0", prefix:"linux-headers-2.6.26-2-parisc64-smp", reference:"2.6.26-17lenny2")) flag++;
if (deb_check(release:"5.0", prefix:"linux-headers-2.6.26-2-powerpc", reference:"2.6.26-17lenny2")) flag++;
if (deb_check(release:"5.0", prefix:"linux-headers-2.6.26-2-powerpc-smp", reference:"2.6.26-17lenny2")) flag++;
if (deb_check(release:"5.0", prefix:"linux-headers-2.6.26-2-powerpc64", reference:"2.6.26-17lenny2")) flag++;
if (deb_check(release:"5.0", prefix:"linux-headers-2.6.26-2-s390", reference:"2.6.26-17lenny2")) flag++;
if (deb_check(release:"5.0", prefix:"linux-headers-2.6.26-2-s390x", reference:"2.6.26-17lenny2")) flag++;
if (deb_check(release:"5.0", prefix:"linux-headers-2.6.26-2-versatile", reference:"2.6.26-17lenny2")) flag++;
if (deb_check(release:"5.0", prefix:"linux-headers-2.6.26-2-vserver-686", reference:"2.6.26-17lenny2")) flag++;
if (deb_check(release:"5.0", prefix:"linux-headers-2.6.26-2-vserver-686-bigmem", reference:"2.6.26-17lenny2")) flag++;
if (deb_check(release:"5.0", prefix:"linux-headers-2.6.26-2-vserver-amd64", reference:"2.6.26-17lenny2")) flag++;
if (deb_check(release:"5.0", prefix:"linux-headers-2.6.26-2-vserver-itanium", reference:"2.6.26-17lenny2")) flag++;
if (deb_check(release:"5.0", prefix:"linux-headers-2.6.26-2-vserver-mckinley", reference:"2.6.26-17lenny2")) flag++;
if (deb_check(release:"5.0", prefix:"linux-headers-2.6.26-2-vserver-powerpc", reference:"2.6.26-17lenny2")) flag++;
if (deb_check(release:"5.0", prefix:"linux-headers-2.6.26-2-vserver-powerpc64", reference:"2.6.26-17lenny2")) flag++;
if (deb_check(release:"5.0", prefix:"linux-headers-2.6.26-2-vserver-s390x", reference:"2.6.26-17lenny2")) flag++;
if (deb_check(release:"5.0", prefix:"linux-headers-2.6.26-2-xen-686", reference:"2.6.26-17lenny2")) flag++;
if (deb_check(release:"5.0", prefix:"linux-headers-2.6.26-2-xen-amd64", reference:"2.6.26-17lenny2")) flag++;
if (deb_check(release:"5.0", prefix:"linux-image-2.6.26-2-486", reference:"2.6.26-17lenny2")) flag++;
if (deb_check(release:"5.0", prefix:"linux-image-2.6.26-2-686", reference:"2.6.26-17lenny2")) flag++;
if (deb_check(release:"5.0", prefix:"linux-image-2.6.26-2-686-bigmem", reference:"2.6.26-17lenny2")) flag++;
if (deb_check(release:"5.0", prefix:"linux-image-2.6.26-2-alpha-generic", reference:"2.6.26-17lenny2")) flag++;
if (deb_check(release:"5.0", prefix:"linux-image-2.6.26-2-alpha-legacy", reference:"2.6.26-17lenny2")) flag++;
if (deb_check(release:"5.0", prefix:"linux-image-2.6.26-2-alpha-smp", reference:"2.6.26-17lenny2")) flag++;
if (deb_check(release:"5.0", prefix:"linux-image-2.6.26-2-amd64", reference:"2.6.26-17lenny2")) flag++;
if (deb_check(release:"5.0", prefix:"linux-image-2.6.26-2-iop32x", reference:"2.6.26-17lenny2")) flag++;
if (deb_check(release:"5.0", prefix:"linux-image-2.6.26-2-itanium", reference:"2.6.26-17lenny2")) flag++;
if (deb_check(release:"5.0", prefix:"linux-image-2.6.26-2-ixp4xx", reference:"2.6.26-17lenny2")) flag++;
if (deb_check(release:"5.0", prefix:"linux-image-2.6.26-2-mckinley", reference:"2.6.26-17lenny2")) flag++;
if (deb_check(release:"5.0", prefix:"linux-image-2.6.26-2-openvz-686", reference:"2.6.26-17lenny2")) flag++;
if (deb_check(release:"5.0", prefix:"linux-image-2.6.26-2-openvz-amd64", reference:"2.6.26-17lenny2")) flag++;
if (deb_check(release:"5.0", prefix:"linux-image-2.6.26-2-orion5x", reference:"2.6.26-17lenny2")) flag++;
if (deb_check(release:"5.0", prefix:"linux-image-2.6.26-2-parisc", reference:"2.6.26-17lenny2")) flag++;
if (deb_check(release:"5.0", prefix:"linux-image-2.6.26-2-parisc-smp", reference:"2.6.26-17lenny2")) flag++;
if (deb_check(release:"5.0", prefix:"linux-image-2.6.26-2-parisc64", reference:"2.6.26-17lenny2")) flag++;
if (deb_check(release:"5.0", prefix:"linux-image-2.6.26-2-parisc64-smp", reference:"2.6.26-17lenny2")) flag++;
if (deb_check(release:"5.0", prefix:"linux-image-2.6.26-2-powerpc", reference:"2.6.26-17lenny2")) flag++;
if (deb_check(release:"5.0", prefix:"linux-image-2.6.26-2-powerpc-smp", reference:"2.6.26-17lenny2")) flag++;
if (deb_check(release:"5.0", prefix:"linux-image-2.6.26-2-powerpc64", reference:"2.6.26-17lenny2")) flag++;
if (deb_check(release:"5.0", prefix:"linux-image-2.6.26-2-s390", reference:"2.6.26-17lenny2")) flag++;
if (deb_check(release:"5.0", prefix:"linux-image-2.6.26-2-s390-tape", reference:"2.6.26-17lenny2")) flag++;
if (deb_check(release:"5.0", prefix:"linux-image-2.6.26-2-s390x", reference:"2.6.26-17lenny2")) flag++;
if (deb_check(release:"5.0", prefix:"linux-image-2.6.26-2-versatile", reference:"2.6.26-17lenny2")) flag++;
if (deb_check(release:"5.0", prefix:"linux-image-2.6.26-2-vserver-686", reference:"2.6.26-17lenny2")) flag++;
if (deb_check(release:"5.0", prefix:"linux-image-2.6.26-2-vserver-686-bigmem", reference:"2.6.26-17lenny2")) flag++;
if (deb_check(release:"5.0", prefix:"linux-image-2.6.26-2-vserver-amd64", reference:"2.6.26-17lenny2")) flag++;
if (deb_check(release:"5.0", prefix:"linux-image-2.6.26-2-vserver-itanium", reference:"2.6.26-17lenny2")) flag++;
if (deb_check(release:"5.0", prefix:"linux-image-2.6.26-2-vserver-mckinley", reference:"2.6.26-17lenny2")) flag++;
if (deb_check(release:"5.0", prefix:"linux-image-2.6.26-2-vserver-powerpc", reference:"2.6.26-17lenny2")) flag++;
if (deb_check(release:"5.0", prefix:"linux-image-2.6.26-2-vserver-powerpc64", reference:"2.6.26-17lenny2")) flag++;
if (deb_check(release:"5.0", prefix:"linux-image-2.6.26-2-vserver-s390x", reference:"2.6.26-17lenny2")) flag++;
if (deb_check(release:"5.0", prefix:"linux-image-2.6.26-2-xen-686", reference:"2.6.26-17lenny2")) flag++;
if (deb_check(release:"5.0", prefix:"linux-image-2.6.26-2-xen-amd64", reference:"2.6.26-17lenny2")) flag++;
if (deb_check(release:"5.0", prefix:"linux-libc-dev", reference:"2.6.26-17lenny2")) flag++;
if (deb_check(release:"5.0", prefix:"linux-manual-2.6.26", reference:"2.6.26-17lenny2")) flag++;
if (deb_check(release:"5.0", prefix:"linux-modules-2.6.26-2-xen-686", reference:"2.6.26-17lenny2")) flag++;
if (deb_check(release:"5.0", prefix:"linux-modules-2.6.26-2-xen-amd64", reference:"2.6.26-17lenny2")) flag++;
if (deb_check(release:"5.0", prefix:"linux-patch-debian-2.6.26", reference:"2.6.26-17lenny2")) flag++;
if (deb_check(release:"5.0", prefix:"linux-source-2.6.26", reference:"2.6.26-17lenny2")) flag++;
if (deb_check(release:"5.0", prefix:"linux-support-2.6.26-2", reference:"2.6.26-17lenny2")) flag++;
if (deb_check(release:"5.0", prefix:"linux-tree-2.6.26", reference:"2.6.26-17lenny2")) flag++;
if (deb_check(release:"5.0", prefix:"xen-linux-system-2.6.26-2-xen-686", reference:"2.6.26-17lenny2")) flag++;
if (deb_check(release:"5.0", prefix:"xen-linux-system-2.6.26-2-xen-amd64", reference:"2.6.26-17lenny2")) flag++;

if (flag)
{
  if (report_verbosity > 0) security_hole(port:0, extra:deb_report_get());
  else security_hole(0);
  exit(0);
}
else audit(AUDIT_HOST_NOT, "affected");
VendorProductVersionCPE
debiandebian_linuxlinux-2.6p-cpe:/a:debian:debian_linux:linux-2.6
debiandebian_linux5.0cpe:/o:debian:debian_linux:5.0

7.2 High

CVSS2

Attack Vector

LOCAL

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

AV:L/AC:L/Au:N/C:C/I:C/A:C

7.8 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

0.0005 Low

EPSS

Percentile

17.4%