CVE-2017-17458

In Mercurial before 4.4.1, it is possible that a specially malformed repository can cause Git subrepositories to run arbitrary code in the form of a .git/hooks/post-update script checked into the repository. Typical use of Mercurial prevents construction of such repositories, but they can be created programmatically.

CVSS v3.0 9.8 CRITICAL
CVSS v2.0 10.0 HIGH

9.8^/10

CVSS v3.0 : CRITICAL

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

Exploitability : 3.9 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

10.0^/10

CVSS v2.0 : HIGH

Vector : AV:N/AC:L/Au:N/C:C/I:C/A:C

Exploitability : 10.0 / Impact : 10.0

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact COMPLETE

Integrity Impact COMPLETE

Availability Impact COMPLETE

References

Link	Resource
https://www.mercurial-scm.org/wiki/WhatsNew#Mercurial_4.4.1_.282017-11-07.29	Vendor Advisory
https://www.mercurial-scm.org/pipermail/mercurial-devel/2017-November/107333.html	Vendor Advisory
https://bz.mercurial-scm.org/show_bug.cgi?id=5730	Issue Tracking Third Party Advisory
https://confluence.atlassian.com/sourcetreekb/sourcetree-security-advisory-2018-01-24-942834324.html	Third Party Advisory
https://lists.debian.org/debian-lts-announce/2017/12/msg00027.html	Mailing List Third Party Advisory
http://www.securityfocus.com/bid/102926	Third Party Advisory VDB Entry
https://lists.debian.org/debian-lts-announce/2018/07/msg00005.html	Mailing List Third Party Advisory
https://lists.debian.org/debian-lts-announce/2018/07/msg00041.html	Mailing List Third Party Advisory
https://lists.debian.org/debian-lts-announce/2020/07/msg00032.html

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Configurations

Configuration 1 (hide)

cpe:2.3:a:mercurial:mercurial:*:*:*:*:*:*:*:*

Configuration 2 (hide)

OR	cpe:2.3:o:debian:debian_linux:7.0:::::::*
	cpe:2.3:o:debian:debian_linux:8.0:::::::*

Information

Published : 2017-12-07 10:29

Updated : 2020-07-31 06:15

NVD link : CVE-2017-17458

Mitre link : CVE-2017-17458

JSON object : View

CWE

CWE-78

Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

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Products Affected

debian

debian_linux

mercurial

mercurial

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