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CVE-2017-16030

UNKNOWN
Published 2018-06-04T19:00:00Z
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No CVSS data available

Description

Useragent is used to parse useragent headers. It uses several regular expressions to accomplish this. An attacker could edit their own headers, creating an arbitrarily long useragent string, causing the event loop and server to block. This affects Useragent 2.1.12 and earlier.

Available Exploits

No exploits available for this CVE.

Related News

No news articles found for this CVE.

Affected Products

HackerOne

useragent node module

Affected Versions:

<=2.1.12

GitHub Security Advisories

Community-driven vulnerability intelligence from GitHub

✓ GitHub Reviewed HIGH

ReDoS via long UserAgent header in useragent

GHSA-pjmx-9xr3-82qr

Advisory Details

Affected versions of `useragent` are vulnerable to regular expression denial of service when an arbitrarily long `User-Agent` header is parsed. ## Proof of Concept ```js var useragent = require('useragent'); var badUserAgent = 'MSIE 0.0'+Array(900000).join('0')+'XBLWP'; var request = 'GET / HTTP/1.1\r\nUser-Agent: ' + badUserAgent + '\r\n\r\n'; console.log(useragent.parse(request)); ``` ## Recommendation Update to version 2.1.13 or later.

Affected Packages

npm useragent
ECOSYSTEM: ≥0 <2.1.13

CVSS Scoring

CVSS Score

7.5

References

ADVISORY https://nvd.nist.gov/vuln/detail/CVE-2017-16030
ADVISORY https://github.com/advisories/GHSA-pjmx-9xr3-82qr
WEB https://www.npmjs.com/advisories/312

Advisory provided by GitHub Security Advisory Database. Published: July 24, 2018, Modified: September 6, 2023

References

https://nodesecurity.io/advisories/312
Published: 2018-06-04T19:00:00Z
Last Modified: 2024-09-17T00:41:28.696Z
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