CVE-2017-9462

HIGH

Mercurial <4.1.3 - RCE

Title source: llm

Description

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.

Exploits (1)

metasploit WORKING POC EXCELLENT

by claudijd · rubypoc

https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/linux/ssh/mercurial_ssh_exec.rb

View Code ZIP pw:eip

References (8)

[Third Party Advisory] http://www.debian.org/security/2017/dsa-3963

[Third Party Advisory, VDB Entry] http://www.securityfocus.com/bid/99123

[Third Party Advisory] https://access.redhat.com/errata/RHSA-2017:1576

[Issue Tracking, Mailing List, Patch, Third Party Advisory] https://bugs.debian.org/861243

[Mailing List, Third Party Advisory] https://lists.debian.org/debian-lts-announce/2018/07/msg00005.html

[Third Party Advisory] https://security.gentoo.org/glsa/201709-18

[Mailing List, Vendor Advisory] https://www.mercurial-scm.org/repo/hg/rev/77eaf9539499

[Release Notes, Vendor Advisory] https://www.mercurial-scm.org/wiki/WhatsNew#Mercurial_4.1.3_.282017-4-18.29

Scores

CVSS v3 8.8

EPSS 0.4870

EPSS Percentile 97.8%

Attack Vector NETWORK

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

Details

CWE

CWE-732

Status published

Products (19)

debian/debian_linux 8.0

debian/debian_linux 9.0

mercurial/mercurial < 4.1.3

pypi/mercurial 0 - 4.1.3PyPI

redhat/enterprise_linux_desktop 6.0

redhat/enterprise_linux_desktop 7.0

redhat/enterprise_linux_server 6.0

redhat/enterprise_linux_server 7.0

redhat/enterprise_linux_server_aus 7.3

redhat/enterprise_linux_server_aus 7.4

... and 9 more

Published Jun 06, 2017

Tracked Since Feb 18, 2026