CVE-2017-17536 : Phabricator before 2017-11-10 does not block the --config and --debugger flags t

Phabricator before 2017-11-10 does not block the --config and --debugger flags to the Mercurial hg program, which allows remote attackers to execute arbitrary code by using the web UI to browse a branch whose name begins with a --config= or --debugger= substring.

Published 2017-12-11 07:29:00

Updated 2019-10-03 00:03:26

Source MITRE

View at NVD, CVE.org

Vulnerability category: Execute code

Products affected by CVE-2017-17536

Phacility » Phabricator
Versions before (<) 2017-11-10
cpe:2.3:a:phacility:phabricator:*:*:*:*:*:*:*:*
Matching versions

Exploit prediction scoring system (EPSS) score for CVE-2017-17536

EPSS FAQ

0.83%

Probability of exploitation activity in the next 30 days EPSS Score History

~ 72 %

Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2017-17536

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source
6.8	MEDIUM	AV:N/AC:M/Au:N/C:P/I:P/A:P	8.6	6.4	NIST
Access Vector: Network Access Complexity: Medium Authentication: None Confidentiality Impact: Partial Integrity Impact: Partial Availability Impact: Partial
8.8	HIGH	CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H	2.8	5.9	NIST
Attack Vector: Network Attack Complexity: Low Privileges Required: None User Interaction: Required Scope: Unchanged Confidentiality: High Integrity: High Availability: High

References for CVE-2017-17536

https://hackerone.com/reports/288704

#288704 Command injection on Phabricator instance with an evil hg branch name
Issue Tracking;Third Party Advisory
https://secure.phabricator.com/T13012

⚓ T13012 Mercurial "--config" and "--debugger" command injection vulnerability
Issue Tracking;Patch;Vendor Advisory

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Vulnerability Details : CVE-2017-17536

Products affected by CVE-2017-17536

Exploit prediction scoring system (EPSS) score for CVE-2017-17536

CVSS scores for CVE-2017-17536

References for CVE-2017-17536