CVE-2023-40225

Advisory lineage Upstream: 0 Downstream: 16
Modified
Published: 10 Aug 2023, 00:00
Last modified:09 Oct 2024, 20:14

Vulnerability Summary

Overall Risk (default)
medium
39/100
CVSS Score
7.2 HIGH
v3.1 (nvd)
EPSS Score
0.09% LOW
0% probability +0.06%
KEV
Not listed
Ransomware
No reports
Public exploits
1 found
Dark Web
Not detected

Timeline

10 Aug 2023, 00:00
Published
Vulnerability first disclosed
09 Oct 2024, 20:14
Last Modified
Vulnerability information updated

Description

HAProxy through 2.0.32, 2.1.x and 2.2.x through 2.2.30, 2.3.x and 2.4.x through 2.4.23, 2.5.x and 2.6.x before 2.6.15, 2.7.x before 2.7.10, and 2.8.x before 2.8.2 forwards empty Content-Length headers, violating RFC 9110 section 8.6. In uncommon cases, an HTTP/1 server behind HAProxy may interpret the payload as an extra request.

CVSS Metrics

  • v3.1•HIGH•Score: 7.2CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N

EPSS Trends

Current EPSS score: 0.09%• Percentile: 26%

Techniques & Countermeasures

  • CWE-444•Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling')

    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.

Affected Systems

  • haproxy•haproxy

    ≤ 2.0.32 | ≥ 2.2.0, ≤ 2.2.30 | ≥ 2.4.0, ≤ 2.4.23 | ≥ 2.5.0, < 2.6.15 | ≥ 2.7.0, < 2.7.10 | ≥ 2.8.0, < 2.8.2

References (6)