Vulnerability Monitor

The vendors, products, and vulnerabilities you care about

CVE-2021-22959

The parser in accepts requests with a space (SP) right after the header name before the colon. This can lead to HTTP Request Smuggling (HRS) in llhttp < v2.1.4 and < v6.0.6.

Published

2021-11-15T15:15:06.747

Last Modified

2024-11-21T05:51:01.317

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 6.5 (MEDIUM)

CVSSv2 Vector

AV:N/AC:L/Au:N/C:P/I:P/A:N

Access Vector: NETWORK
Access Complexity: LOW
Authentication: NONE
Confidentiality Impact: PARTIAL
Integrity Impact: PARTIAL
Availability Impact: NONE

Exploitability Score

10.0

Impact Score

4.9

Weaknesses

Type: Secondary
CWE-444
Type: Primary
CWE-444

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	llhttp	llhttp	< 2.1.4	Yes
Application	llhttp	llhttp	< 6.0.6	Yes
Application	oracle	graalvm	20.3.4	Yes
Application	oracle	graalvm	21.3.0	Yes
Operating System	debian	debian_linux	11.0	Yes

References

https://hackerone.com/reports/1238709 Exploit, Issue Tracking, Third Party Advisory ([email protected])
https://www.debian.org/security/2022/dsa-5170 Mailing List, Third Party Advisory ([email protected])
https://www.oracle.com/security-alerts/cpujan2022.html Patch, Third Party Advisory ([email protected])
https://hackerone.com/reports/1238709 Exploit, Issue Tracking, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://www.debian.org/security/2022/dsa-5170 Mailing List, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://www.oracle.com/security-alerts/cpujan2022.html Patch, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)