CVE-2023-25690 Details
Some mod_proxy configurations on Apache HTTP Server versions 2.4.0 through 2.4.55 allow a HTTP Request Smuggling attack. Configurations are affected when mod_proxy is enabled along with some form of RewriteRule or ProxyPassMatch in which a non-specific pattern matches some portion of the user-supplied request-target (URL) data and is then re-inserted into the proxied request-target using variable substitution. For example, something like: RewriteEngine on RewriteRule "^/here/(.*)" "http://example.com:8080/elsewhere?$1"; [P] ProxyPassReverse /here/ http://example.com:8080/ Request splitting/smuggling could result in bypass of access controls in the proxy server, proxying unintended URLs to existing origin servers, and cache poisoning. Users are recommended to update to at least version 2.4.56 of Apache HTTP Server.
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Exploit prediction scoring system (EPSS) score for CVE-2023-25690
EPSS (Exploit Prediction Scoring System): EPSS predicts the likelihood that a vulnerability will be exploited in the wild. A higher percentage means a greater chance of an exploit occurring. The EPSS model produces a probability score between 0 and 1 (0 and 100%).
56.88 Probability of exploitation activity being observed over the next 30 days (98th percentile)
CVSS score for CVE-2023-25690
CVSS (Common Vulnerability Scoring System): An open framework owned and managed by FIRST.Org, Inc. that assigns a numerical score from 0 to 10 to software vulnerabilities to indicate their severity.
9.8 Critical
Products affected by CVE-2023-25690
HTTP Server 2.4.29
HTTP Server 2.4.3
HTTP Server 2.4.30
HTTP Server 2.4.31
HTTP Server 2.4.32
DVE Score by Bitsight AI
DVE scores complement traditional static scoring systems like CVSS with Bitsight AI powered real-time threat intelligence and underground cyber criminal activity so that security teams can reduce alert fatigue and focus on vulnerabilities most likely to be exploited.
Low
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CVE-2023-25690 Global Footprint

Top 10 Identified Countries

Country Observations Percentage
US 1,672,105 29.23%
DE 708,337 12.38%
FR 315,435 5.51%
JP 300,251 5.25%
GB 242,780 4.24%
NL 196,155 3.43%
CA 160,335 2.80%
RU 148,746 2.60%
IN 142,044 2.48%
CN 129,098 2.26%

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CVE-2023-25690 Industry Footprint

Top 10 Identified Industries

*Service provider organizations (typically Technology and Telecommunications) are disproportionally represented in the results given their upstream ownership of end-user infrastructure. See our FAQs.

Industry* Observations Percentage
Technology 3,450,612 81.14%
Telecommunications 554,325 13.04%
Education 125,420 2.95%
Government/Politics 34,103 0.80%
Business Services 17,813 0.42%
Manufacturing 9,780 0.23%
Media/Entertainment 7,961 0.19%
Utilities 7,225 0.17%
Energy/Resources 5,915 0.14%
Healthcare/Wellness 5,669 0.13%

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