Improper access control in Mercurial

1) Improper access control

EUVDB-ID: #VU32285

Risk: High

CVSSv3.1: 7.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2016-3105

CWE-ID: CWE-284 - Improper Access Control

Exploit availability: No

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

External links

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

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.