Security Bulletin: Multiple security issues in IBM Tealeaf Customer Experience on Cloud Network Capture Add-On

Summary

Multiple security vulnerabilities in memcached, PCRE, and PHP affect IBM Tealeaf Customer Experience on Cloud Network Capture Add-On.

Installation programs for the Windows components of IBM Tealeaf Customer Experience on Cloud Network Capture Add-On are vulnerable to attack under certain conditions.

OpenSSL vulnerabilities were disclosed on December 3, 2015; March 1, 2016; and May 3, 2016 by the OpenSSL Project. OpenSSL is used by IBM Tealeaf Customer Experience on Cloud Network Capture Add-On. IBM Tealeaf Customer Experience on Cloud Network Capture Add-On has addressed the applicable CVEs.

IBM Tealeaf Customer Experience on Cloud Network Capture Add-On servers allow access to operational data and less privileged operations without authentication.

Vulnerability Details

CVEID: CVE-2013-0179**
DESCRIPTION:** memcached is vulnerable to a denial of service, caused by an error in the process_bin_delete() function within memcached.c file when printing the terminated keys to stderr. By sending a specially-crafted request to delete a key using memrm service, a remote attacker could exploit this vulnerability to cause the segmentation fault and application to crash.
CVSS Base Score: 5
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/90535 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (AV:N/AC:L/Au:N/C:N/I:N/A:P)

CVEID: CVE-2013-7290**
DESCRIPTION:** memcached is vulnerable to a denial of service, caused by an error in the do_item_get() function within items.c file when printing the terminated keys to stderr. By sending a specially-crafted request to delete a key using memrm service, a remote attacker could exploit this vulnerability to cause the segmentation fault and application to crash.
CVSS Base Score: 5
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/90540 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (AV:N/AC:L/Au:N/C:N/I:N/A:P)

CVEID: CVE-2013-7291**
DESCRIPTION:** memcached is vulnerable to a denial of service, caused by an error in the process_bin_delete() function within memcached.c file when printing the terminated keys to stderr. By sending a specially-crafted request to delete a key, a remote attacker could exploit this vulnerability to cause the segmentation fault and application to crash.
CVSS Base Score: 5
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/90542 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (AV:N/AC:L/Au:N/C:N/I:N/A:P)

CVEID: CVE-2014-9769**
DESCRIPTION:** PCRE is vulnerable to a denial of service, caused by the failure to properly use table jumps to optimize nested alternatives by pcre_jit_compile.c. A remote attacker could exploit this vulnerability using a specially crafted string to corrupt the stack and cause a segmentation fault.
CVSS Base Score: 5.3
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/111793 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L)

CVEID: CVE-2015-1794**
DESCRIPTION:** OpenSSL is vulnerable to a denial of service, caused by an error when a client receives a ServerKeyExchange for an anonymous DH ciphersuite with the value of p set to 0. An attacker could exploit this vulnerability to trigger a segfault and cause a denial of service.
CVSS Base Score: 3.7
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/108539 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L)

CVEID: CVE-2015-2327**
DESCRIPTION:** PCRE is vulnerable to a denial of service, caused by the improper handling of patterns with certain recursion. A remote attacker could exploit this vulnerability using a specially crafted regular expression to cause a segmentation fault.
CVSS Base Score: 5.3
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/109275 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L)

CVEID: CVE-2015-2328**
DESCRIPTION:** PCRE is vulnerable to a denial of service, caused by the improper handling of patterns with certain internal recursive back references. A remote attacker could exploit this vulnerability using a specially crafted regular expression to cause a segmentation fault.
CVSS Base Score: 5.3
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/109276 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L)

CVEID: CVE-2015-3193**
DESCRIPTION:** OpenSSL could allow a remote attacker to obtain sensitive information, caused by an error in the x86_64 Montgomery squaring procedure. An attacker with online access to an unpatched system could exploit this vulnerability to obtain private key information.
CVSS Base Score: 5.3
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/108502 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N)

CVEID: CVE-2015-3194**
DESCRIPTION:** OpenSSL is vulnerable to a denial of service, caused by a NULL pointer dereference when verifying certificates via a malformed routine. An attacker could exploit this vulnerability using signature verification routines with an absent PSS parameter to cause any certificate verification operation to crash.
CVSS Base Score: 5.3
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/108503 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L)

CVEID: CVE-2015-3195**
DESCRIPTION:** OpenSSL could allow a remote attacker to obtain sensitive information, caused by a memory leak in a malformed X509_ATTRIBUTE structure. An attacker could exploit this vulnerability to obtain CMS data and other sensitive information.
CVSS Base Score: 5.3
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/108504 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N)

CVEID: CVE-2015-3196**
DESCRIPTION:** OpenSSL is vulnerable to a denial of service, caused by a race condition when PSK identity hints are received by a multi-threaded client and the SSL_CTX structure is updated with the incorrect value. An attacker could exploit this vulnerability to possibly corrupt memory and cause a denial of service.
CVSS Base Score: 3.7
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/108505 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L)

CVEID: CVE-2015-3210**
DESCRIPTION:** PCRE is vulnerable to a heap-based buffer overflow. By sending a specially-crafted regular expression, an attacker could overflow a buffer and execute arbitrary code on the system.
CVSS Base Score: 7.5
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/103511 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (AV:N/AC:L/Au:N/C:P/I:P/A:P)

CVEID: CVE-2015-4987**
DESCRIPTION:** The IBM Tealeaf Customer Experience search and replay servers could allow an unauthenticated attacker to bypass security resulting in access to some product functionality and data.
CVSS Base Score: 6.5
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/105896 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N)

CVEID: CVE-2015-8865**
DESCRIPTION:** PHP could allow a remote attacker to execute arbitrary code on the system, caused by the improper handling of continuation-level jumps by the file_check_mem function. An attacker could exploit this vulnerability using a specially crafted magic file to execute arbitrary code on the system or cause the application to crash.
CVSS Base Score: 9.8
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/113955 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)

CVEID: CVE-2016-0702**
DESCRIPTION:** OpenSSL could allow a local attacker to obtain sensitive information, caused by a side-channel attack against a system based on the Intel Sandy-Bridge microarchitecture. An attacker could exploit this vulnerability to recover RSA keys.
CVSS Base Score: 2.9
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/111144 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:L/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N)

CVEID: CVE-2016-1283**
DESCRIPTION:** PCRE is vulnerable to a heap-based buffer overflow, caused by the improper handling of patterns by the pcre_compile2() function. By using a specially crafted regular expression, a remote attacker could overflow a buffer and execute arbitrary code on the system or cause the application to crash.
CVSS Base Score: 7.3
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/109363 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L)

CVEID: CVE-2016-2107**
DESCRIPTION:** OpenSSL could allow a remote attacker to obtain sensitive information, caused by an error when the connection uses an AES CBC cipher and the server support AES-NI. A remote user with the ability to conduct a man-in-the-middle attack could exploit this vulnerability via the POODLE (Padding Oracle On Downgraded Legacy Encryption) attack to decrypt traffic.
CVSS Base Score: 4.3
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/112854 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N)

CVEID: CVE-2016-2542**
DESCRIPTION:** Flexera InstallShield could allow a remote attacker to execute arbitrary code on the system. The application does not directly specify the fully qualified path to a dynamic-linked library (schannel.dll) when running on Microsoft Windows. By persuading a victim to open a specially-crafted file from a WebDAV or SMB share using a vulnerable application, a remote attacker could exploit this vulnerability via a specially-crafted library to execute arbitrary code on the system.
CVSS Base Score: 7.8
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/110914 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H)

CVEID: CVE-2016-2554**
DESCRIPTION:** PHP is vulnerable to a stack-based buffer overflow, caused by improper bounds checking by ext/phar/tar.c. By using a malformed TAR archive, a remote attacker could overflow a buffer and execute arbitrary code on the system cause the application to crash.
CVSS Base Score: 9.8
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/113825 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)

CVEID: CVE-2016-2842**
DESCRIPTION:** OpenSSL is vulnerable to a denial of service, caused by the failure to verify that a certain memory allocation succeeds by the doapr_outch function. A remote attacker could exploit this vulnerability using a specially crafted string to cause an out-of-bounds write or consume an overly large amount of resources.
CVSS Base Score: 7.5
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/111304 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)

CVEID: CVE-2016-3191**
DESCRIPTION:** PCRE and PCRE2 are vulnerable to a stack-based buffer overflow, caused by the improper handling of the (ACCEPT) substring by the compile_branch function in pcre_compile.c. By using a specially-crafted regular expression, a remote attacker could overflow a buffer and execute arbitrary code on the system or cause the application to crash.
CVSS Base Score: 7.3
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/111583 for the current score
CVSS Environmental Score: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L)

CVEID: CVE-2016-4072**
DESCRIPTION:** PHP could allow a remote attacker to execute arbitrary code on the system, caused by the mishandling of \0 characters by the Phar extension. An attacker could exploit this vulnerability using a specially crafted filename to execute arbitrary code on the system.
CVSS Base Score: 9.8
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/113816 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)

Affected Products and Versions

IBM Customer Experience on Cloud Network Capture Add-On 16.1.01

Remediation/Fixes

Client Success Portal: https://tealeaf.support.ibmcloud.com/ics/support/DLList.asp?task=download&folderID=121267

Workarounds and Mitigations

Access to local networks containing networked Tealeaf servers should be limited to avoid unauthorized access to or disruption of Tealeaf services.
Access to PCA systems should be limited as much as possible.
When running any Tealeaf Windows installation or upgrade program, ensure that the directory from which the installation is run and all other directories listed in the PATH environment variable do not contain untrusted versions of any executable files.