CVE-2017-9462

In Mercurial before 4.1.3, "hg serve --stdio" allows remote authenticated users to launch the Python debugger, and consequently execute arbitrary code, by using --debugger as a repository name.

CVSS v4.0 GitHub

8.7 HIGHCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

CVSS v3.1 NVD

8.8 HIGHCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS v2.0 NVD

9.0 HIGHAV:N/AC:L/Au:S/C:C/I:C/A:C

EPSS

21.68% chance of exploitation in the next 30 days, 98th percentile

Published

2017-06-06

Updated

2024-08-05

Metasploit modules (1)

• rapid7/metasploit-framework/blob/master/modules/exploits/linux/ssh/mercurial_ssh_exec.rb

Security advisories

• https://www.mercurial-scm.org/repo/hg/rev/77eaf9539499
• https://www.mercurial-scm.org/wiki/WhatsNew#Mercurial_4.1.3_.282017-4-18.29
• http://www.debian.org/security/2017/dsa-3963
• http://www.securityfocus.com/bid/99123
• https://access.redhat.com/errata/RHSA-2017:1576
• https://bugs.debian.org/861243
• https://lists.debian.org/debian-lts-announce/2018/07/msg00005.html
• https://security.gentoo.org/glsa/201709-18
• advisories/GHSA-ghjx-3jg5-h6r2

References

• CVE Record
• NVD entry