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Vulnerability Details : CVE-2014-7817

The wordexp function in GNU C Library (aka glibc) 2.21 does not enforce the WRDE_NOCMD flag, which allows context-dependent attackers to execute arbitrary commands, as demonstrated by input containing "$((`...`))".
Publish Date : 2014-11-24 Last Update Date : 2018-10-30
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- CVSS Scores & Vulnerability Types

CVSS Score
4.6
Confidentiality Impact Partial (There is considerable informational disclosure.)
Integrity Impact Partial (Modification of some system files or information is possible, but the attacker does not have control over what can be modified, or the scope of what the attacker can affect is limited.)
Availability Impact Partial (There is reduced performance or interruptions in resource availability.)
Access Complexity Low (Specialized access conditions or extenuating circumstances do not exist. Very little knowledge or skill is required to exploit. )
Authentication Not required (Authentication is not required to exploit the vulnerability.)
Gained Access None
Vulnerability Type(s) Execute Code
CWE ID 20

- Related OVAL Definitions

Title Definition Id Class Family
DSA-3142-1 -- eglibc -- security update oval:org.mitre.oval:def:28528 unix
ELSA-2014-2023 -- glibc security and bug fix update (moderate) oval:org.mitre.oval:def:28088 unix
RHSA-2014:2023 -- glibc security and bug fix update (Moderate) oval:org.mitre.oval:def:28439 unix
RHSA-2014:2023: glibc security and bug fix update (Moderate) oval:com.redhat.rhsa:def:20142023 unix
RHSA-2015:0016: glibc security and bug fix update (Moderate) oval:com.redhat.rhsa:def:20150016 unix
USN-2432-1 -- GNU C Library vulnerabilities oval:org.mitre.oval:def:28047 unix
OVAL (Open Vulnerability and Assessment Language) definitions define exactly what should be done to verify a vulnerability or a missing patch. Check out the OVAL definitions if you want to learn what you should do to verify a vulnerability.

- Products Affected By CVE-2014-7817

# Product Type Vendor Product Version Update Edition Language
1 OS Canonical Ubuntu Linux 10.04 ~~lts~~~ Version Details Vulnerabilities
2 OS Canonical Ubuntu Linux 12.04 ~~lts~~~ Version Details Vulnerabilities
3 OS Canonical Ubuntu Linux 14.04 ~~lts~~~ Version Details Vulnerabilities
4 OS Canonical Ubuntu Linux 14.10 Version Details Vulnerabilities
5 OS Debian Debian Linux 7.0 Version Details Vulnerabilities
6 Application GNU Glibc 2.21 Version Details Vulnerabilities
7 OS Opensuse Opensuse 13.1 Version Details Vulnerabilities
8 OS Opensuse Opensuse 13.2 Version Details Vulnerabilities

- Number Of Affected Versions By Product

Vendor Product Vulnerable Versions
Canonical Ubuntu Linux 4
Debian Debian Linux 1
GNU Glibc 1
Opensuse Opensuse 2

- References For CVE-2014-7817

http://lists.opensuse.org/opensuse-updates/2015-02/msg00089.html
SUSE openSUSE-SU-2015:0351
http://www.oracle.com/technetwork/security-advisory/cpujan2018-3236628.html CONFIRM
http://rhn.redhat.com/errata/RHSA-2014-2023.html
REDHAT RHSA-2014:2023
http://seclists.org/oss-sec/2014/q4/730
MLIST [oss-security] 20141120 CVE-2014-7817 glibc: command execution in wordexp() with WRDE_NOCMD specified
http://secunia.com/advisories/62146
SECUNIA 62146
https://security.gentoo.org/glsa/201602-02
GENTOO GLSA-201602-02
https://sourceware.org/bugzilla/show_bug.cgi?id=17625 CONFIRM
https://sourceware.org/ml/libc-alpha/2014-11/msg00519.html
MLIST [libc-alpha] 20141119 [COMMITTED] CVE-2014-7817: wordexp fails to honour WRDE_NOCMD.
https://sourceware.org/git/gitweb.cgi?p=glibc.git;a=commitdiff;h=a39208bd7fb76c1b01c127b4c61f9bfd915bfe7c CONFIRM
http://www.ubuntu.com/usn/USN-2432-1
UBUNTU USN-2432-1
https://exchange.xforce.ibmcloud.com/vulnerabilities/98852
XF gnu-glibc-cve20147817-command-exec(98852)
http://www.securityfocus.com/bid/71216
BID 71216 GNU glibc CVE-2014-7817 Arbitrary Command Execution Vulnerability Release Date:2015-06-04
http://linux.oracle.com/errata/ELSA-2015-0016.html CONFIRM
http://www.debian.org/security/2015/dsa-3142
DEBIAN DSA-3142
http://www.oracle.com/technetwork/security-advisory/cpuoct2018-4428296.html CONFIRM
http://secunia.com/advisories/62100
SECUNIA 62100
http://linux.oracle.com/errata/ELSA-2015-0092.html CONFIRM

- Metasploit Modules Related To CVE-2014-7817

There are not any metasploit modules related to this CVE entry (Please visit www.metasploit.com for more information)


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