Home/CVE/IP address spoofing when proxying using mod_remoteip and mod_rewrite For configurations using proxying with mod_remoteip
CVE

CVE-2020-11985

IP address spoofing when proxying using mod_remoteip and mod_rewrite For configurations using proxying with mod_remoteip

IP address spoofing when proxying using mod_remoteip and mod_rewrite For configurations using proxying with mod_remoteip and certain mod_rewrite rules, an attacker could spoof their IP address for logging and PHP scripts. Note this issue was fixed in Apache HTTP Server 2.4.24 but was retrospectively allocated a low severity CVE in 2020.

MEDIUM · CVSS 5.3 EPSS 0.15318
Schedule remediation
  • EPSS ≥ 0.10 - elevated exploitation probability
  • EPSS percentile: top 5% of all CVEs by exploitation likelihood
Sigma rules0 YARA rules0

Affected Products & Versions

1
apache http server>= 2.4.1 and <= 2.4.23

Scoring & Timeline

5.3
MEDIUM · CVSS v3.1 · security@apache.org
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD07 Aug 2020 · 04:15 PM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Vendor Advisories

3
suse-csafSUSE-SU-2020:2450-1
rhsaRHSA-2017:1161Moderate
rhsaRHBA-2015:2194Moderate
🔗

References & Sources

16
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
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