CVE-2022-24999
qs before 6.10.3, as used in Express before 4.17.3 and other products, allows attackers to cause a Node process hang for an Express application because an __ proto__ key can be used.
Does this matter?
EPSS puts the probability of exploitation in the next 30 days at 15.1%, higher than 97% of all known CVEs. Patch or mitigate before the next change window.
Description
qs before 6.10.3, as used in Express before 4.17.3 and other products, allows attackers to cause a Node process hang for an Express application because an __ proto__ key can be used. In many typical Express use cases, an unauthenticated remote attacker can place the attack payload in the query string of the URL that is used to visit the application, such as a[__proto__]=b&a[__proto__]&a[length]=100000000. The fix was backported to qs 6.9.7, 6.8.3, 6.7.3, 6.6.1, 6.5.3, 6.4.1, 6.3.3, and 6.2.4 (and therefore Express 4.17.3, which has "deps: qs@6.9.7" in its release description, is not vulnerable).
- CVSS 3.1
- 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 15.06% probability · 97th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-1321
- Affected
- qs project/qs · openjsf/express · debian/debian linux
- Source
- cve@mitre.org
References
- https://github.com/expressjs/express/releases/tag/4.17.3Release Notes
- https://github.com/ljharb/qs/pull/428Issue Tracking, Patch
- https://github.com/n8tz/CVE-2022-24999Exploit, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2023/01/msg00039.htmlMailing List, Third Party Advisory
- https://security.netapp.com/advisory/ntap-20230908-0005/
- https://github.com/expressjs/express/releases/tag/4.17.3Release Notes
- https://github.com/ljharb/qs/pull/428Issue Tracking, Patch
- https://github.com/n8tz/CVE-2022-24999Exploit, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2023/01/msg00039.htmlMailing List, Third Party Advisory
- https://security.netapp.com/advisory/ntap-20230908-0005/
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.