Vulnerability CVE-2014-7817
Published: 2014-11-24

Description:
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 "$((`...`))".

See advisories in our WLB2 database:
Topic
Author
Date
Med.
glibc command execution in wordexp() with WRDE_NOCMD specified
Francisco
22.11.2014

Type:

CWE-20

 (Improper Input Validation)

CVSS2 => (AV:L/AC:L/Au:N/C:P/I:P/A:P)

CVSS Base Score
Impact Subscore
Exploitability Subscore
4.6/10
6.4/10
3.9/10
Exploit range
Attack complexity
Authentication
Local
Low
No required
Confidentiality impact
Integrity impact
Availability impact
Partial
Partial
Partial
Affected software
Opensuse -> Opensuse 
Novell -> Opensuse 
GNU -> Glibc 
Debian -> Debian linux 
Canonical -> Ubuntu linux 

 References:
http://linux.oracle.com/errata/ELSA-2015-0016.html
http://linux.oracle.com/errata/ELSA-2015-0092.html
http://lists.opensuse.org/opensuse-updates/2015-02/msg00089.html
http://rhn.redhat.com/errata/RHSA-2014-2023.html
http://seclists.org/oss-sec/2014/q4/730
http://secunia.com/advisories/62100
http://secunia.com/advisories/62146
http://www.debian.org/security/2015/dsa-3142
http://www.oracle.com/technetwork/security-advisory/cpujan2018-3236628.html
http://www.oracle.com/technetwork/security-advisory/cpuoct2018-4428296.html
http://www.securityfocus.com/bid/71216
http://www.ubuntu.com/usn/USN-2432-1
https://exchange.xforce.ibmcloud.com/vulnerabilities/98852
https://security.gentoo.org/glsa/201602-02
https://sourceware.org/bugzilla/show_bug.cgi?id=17625
https://sourceware.org/git/gitweb.cgi?p=glibc.git;a=commitdiff;h=a39208bd7fb76c1b01c127b4c61f9bfd915bfe7c
https://sourceware.org/ml/libc-alpha/2014-11/msg00519.html
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