Vulnerability in Apache Http Server
CVE-2020-11985
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.
EPSS: 0.068 (93.3th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N.
Affected products
- Apache Http_server
- N/a Apache Http Server — versions 2.4.1 to 2.4.23
Weakness classification (CWE)
Public proof-of-concept exploits
References
- security@apache.org (x_refsource_MISC, Vendor Advisory)
- security@apache.org (vendor-advisory, Third Party Advisory, x_refsource_GENTOO)
- security@apache.org (x_refsource_FEDORA, vendor-advisory)
- security@apache.org (x_refsource_FEDORA, vendor-advisory)
- security@apache.org (x_refsource_MISC)
- security@apache.org (x_refsource_CONFIRM)
- security@apache.org (mailing-list, x_refsource_MLIST)
- security@apache.org (mailing-list, x_refsource_MLIST)
- security@apache.org (mailing-list, x_refsource_MLIST)
- security@apache.org (mailing-list, x_refsource_MLIST)
Frequently asked questions
- What is CVE-2020-11985?
- CVE-2020-11985 is a medium-severity vulnerability in Apache Http Server, classified under Insufficient Verification of Data Authenticity. CVSS score: 5.3/10. Published 2020-08-07.
- How severe is CVE-2020-11985?
- Medium severity. CVSS v3 base score is 5.3 out of 10.
- Is CVE-2020-11985 known to be exploited?
- 12 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.