#VU33721 Input validation error in cpio - CVE-2015-1197

Vulnerability identifier: #VU33721

Vulnerability risk: Low

CVSSv4.0: 1 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2015-1197

CWE-ID: CWE-20

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
cpio
Client/Desktop applications / Software for archiving

Vendor: GNU

Description

The vulnerability allows a remote non-authenticated attacker to manipulate data.

cpio 2.11, when using the --no-absolute-filenames option, allows local users to write to arbitrary files via a symlink attack on a file in an archive. <a href="http://cwe.mitre.org/data/definitions/61.html">CWE-61: UNIX Symbolic Link (Symlink) Following</a>

Mitigation
Install update from vendor's website.

Vulnerable software versions

cpio: 2.11

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External links
https://advisories.mageia.org/MGASA-2015-0080.html
https://www.mandriva.com/security/advisories?name=MDVSA-2015:066
https://www.openwall.com/lists/oss-security/2015/01/07/5
https://www.openwall.com/lists/oss-security/2015/01/18/7
https://www.securityfocus.com/bid/71914
https://www.ubuntu.com/usn/USN-2906-1
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=774669
https://lists.gnu.org/archive/html/bug-cpio/2015-01/msg00000.html

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.