Bug 1955727 (CVE-2021-29472) - CVE-2021-29472 composer: Specifically crafted URL values allow code to be executed in the HgDriver
Summary: CVE-2021-29472 composer: Specifically crafted URL values allow code to be exe...
Keywords:
Status: CLOSED UPSTREAM
Alias: CVE-2021-29472
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
high
high
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 1955728 1955729
Blocks:
TreeView+ depends on / blocked
 
Reported: 2021-04-30 17:41 UTC by Pedro Sampaio
Modified: 2021-04-30 22:46 UTC (History)
2 users (show)

Fixed In Version:
Doc Type: If docs needed, set a value
Doc Text:
Clone Of:
Environment:
Last Closed: 2021-04-30 22:46:36 UTC


Attachments (Terms of Use)

Description Pedro Sampaio 2021-04-30 17:41:23 UTC
Composer is a dependency manager for PHP. URLs for Mercurial repositories in the root composer.json and package source download URLs are not sanitized correctly. Specifically crafted URL values allow code to be executed in the HgDriver if hg/Mercurial is installed on the system. The impact to Composer users directly is limited as the composer.json file is typically under their own control and source download URLs can only be supplied by third party Composer repositories they explicitly trust to download and execute source code from, e.g. Composer plugins. The main impact is to services passing user input to Composer, including Packagist.org and Private Packagist. This allowed users to trigger remote code execution. The vulnerability has been patched on Packagist.org and Private Packagist within 12h of receiving the initial vulnerability report and based on a review of logs, to the best of our knowledge, was not abused by anyone. Other services/tools using VcsRepository/VcsDriver or derivatives may also be vulnerable and should upgrade their composer/composer dependency immediately. Versions 1.10.22 and 2.0.13 include patches for this issue.

References:

https://getcomposer.org/
https://github.com/composer/composer/security/advisories/GHSA-h5h8-pc6h-jvvx

Comment 1 Pedro Sampaio 2021-04-30 17:41:51 UTC
Created composer tracking bugs for this issue:

Affects: epel-7 [bug 1955729]
Affects: fedora-all [bug 1955728]

Comment 2 Product Security DevOps Team 2021-04-30 22:46:36 UTC
This CVE Bugzilla entry is for community support informational purposes only as it does not affect a package in a commercially supported Red Hat product. Refer to the dependent bugs for status of those individual community products.


Note You need to log in before you can comment on or make changes to this bug.