#VU43404 Input validation error in Midnight Commander - CVE-2012-4463

Vulnerability identifier: #VU43404

Vulnerability risk: Medium

CVSSv4.0: 1.7 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2012-4463

CWE-ID: CWE-20

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Midnight Commander
Other software / Other software solutions

Vendor: GNU Midnight Commander Project

Description

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

Midnight Commander (mc) 4.8.5 does not properly handle the (1) MC_EXT_SELECTED or (2) MC_EXT_ONLYTAGGED environment variables when multiple files are selected, which allows user-assisted remote attackers to execute arbitrary commands via a crafted file name.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Midnight Commander: 4.8.5

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External links
https://www.openwall.com/lists/oss-security/2012/10/03/4
https://www.openwall.com/lists/oss-security/2012/10/03/5
https://www.securityfocus.com/bid/55777
https://bugs.gentoo.org/show_bug.cgi?id=436518#c7
https://bugzilla.redhat.com/show_bug.cgi?id=862813
https://exchange.xforce.ibmcloud.com/vulnerabilities/79033
https://www.midnight-commander.org/ticket/2913

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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.