mod_proxy X-Forwarded-For dropped by hop-by-hop mechanism
CVE-2022-31813

9.8CRITICAL

Key Information:

Vendor
Apache
Status
Apache Http Server
Vendor
CVE Published:
9 June 2022

Summary

Apache HTTP Server 2.4.53 and earlier may not send the X-Forwarded-* headers to the origin server based on client side Connection header hop-by-hop mechanism. This may be used to bypass IP based authentication on the origin server/application.

Affected Version(s)

Apache HTTP Server Apache HTTP Server 2.4 <= 2.4.53

References

https://httpd.apache.org/security/vulnerabilities_24.html
x_refsource_MISC
http://www.openwall.com/lists/oss-security/2022/06/08/8
mailing-listx_refsource_MLIST
https://security.netapp.com/advisory/ntap-20220624-0005/
x_refsource_CONFIRM

CVSS V3.1

Score:
9.8
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

The Apache HTTP Server project would like to thank Gaetan Ferry (Synacktiv) for reporting this issue
.