Vulnerability Details : CVE-2021-22960
Potential exploit
The parse function in llhttp < 2.1.4 and < 6.0.6. ignores chunk extensions when parsing the body of chunked requests. This leads to HTTP Request Smuggling (HRS) under certain conditions.
Products affected by CVE-2021-22960
- cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*
- cpe:2.3:a:oracle:graalvm:20.3.4:*:*:*:enterprise:*:*:*
- cpe:2.3:a:oracle:graalvm:21.3.0:*:*:*:enterprise:*:*:*
- cpe:2.3:a:llhttp:llhttp:*:*:*:*:*:node.js:*:*
- cpe:2.3:a:llhttp:llhttp:*:*:*:*:*:node.js:*:*
Exploit prediction scoring system (EPSS) score for CVE-2021-22960
0.15%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 32 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-22960
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
5.8
|
MEDIUM | AV:N/AC:M/Au:N/C:P/I:P/A:N |
8.6
|
4.9
|
NIST | |
|
6.5
|
MEDIUM | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N |
3.9
|
2.5
|
NIST |
CWE ids for CVE-2021-22960
-
The product acts as an intermediary HTTP agent (such as a proxy or firewall) in the data flow between two entities such as a client and server, but it does not interpret malformed HTTP requests or responses in ways that are consistent with how the messages will be processed by those entities that are at the ultimate destination.Assigned by:
- nvd@nist.gov (Primary)
- support@hackerone.com (Secondary)
References for CVE-2021-22960
-
https://www.oracle.com/security-alerts/cpujan2022.html
Oracle Critical Patch Update Advisory - January 2022Patch;Third Party Advisory
-
https://hackerone.com/reports/1238099
#1238099 HTTP Request Smuggling due to ignoring chunk extensionsExploit;Issue Tracking;Third Party Advisory
-
https://www.debian.org/security/2022/dsa-5170
Debian -- Security Information -- DSA-5170-1 nodejsThird Party Advisory
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