Vulnerability Details : CVE-2023-40225

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.
Published 2023-08-10 21:15:11
Updated 2023-08-18 20:03:17
Source MITRE
View at NVD,   CVE.org

Products affected by CVE-2023-40225

Exploit prediction scoring system (EPSS) score for CVE-2023-40225

EPSS FAQ
0.27%
Probability of exploitation activity in the next 30 days EPSS Score History
~ 69 %
Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2023-40225

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source First Seen
7.2
 HIGH CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N
3.9
2.7
 NIST

CWE ids for CVE-2023-40225

  • 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)

References for CVE-2023-40225

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