#VU32285 Improper access control in Mercurial - CVE-2016-3105

Vulnerability identifier: #VU32285

Vulnerability risk: High

CVSSv4.0: 5.7 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2016-3105

CWE-ID: CWE-284

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Mercurial
Client/Desktop applications / Other client software

Vendor: Mercurial

Description

The vulnerability allows a remote non-authenticated attacker to execute arbitrary code.

The convert extension in Mercurial before 3.8 might allow context-dependent attackers to execute arbitrary code via a crafted git repository name.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Mercurial: 3.0 - 3.7.3

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External links
https://lists.opensuse.org/opensuse-updates/2016-05/msg00082.html
https://www.debian.org/security/2016/dsa-3570
https://www.securityfocus.com/bid/90536
https://www.slackware.com/security/viewer.php?l=slackware-security&y=2016&m=slackware-security.533255
https://security.gentoo.org/glsa/201612-19
https://selenic.com/hg/rev/a56296f55a5e
https://www.mercurial-scm.org/wiki/WhatsNew#Mercurial_3.8_.2F_3.8.1_.282016-5-1.29

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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.