CVE-2024-38475

critical-risk
Published 2024-07-01

Improper escaping of output in mod_rewrite in Apache HTTP Server 2.4.59 and earlier allows an attacker to map URLs to filesystem locations that are permitted to be served by the server but are not intentionally/directly reachable by any URL, resulting in code execution or source code disclosure. Substitutions in server context that use a backreferences or variables as the first segment of the substitution are affected.  Some unsafe RewiteRules will be broken by this change and the rewrite flag "UnsafePrefixStat" can be used to opt back in once ensuring the substitution is appropriately constrained.

Do I need to act?

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93.9% chance of exploitation in next 30 days
EPSS score — higher than 6% of all CVEs
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CISA KEV: actively exploited in the wild
On the Known Exploited Vulnerabilities catalog — federal agencies must patch
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Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
9
CVSS 9.1/10 Critical
NETWORK / LOW complexity

Affected Products (7)

Ontap 9

Affected Vendors

Apache Sonicwall Netapp

References (9)

Vendor Advisory https://httpd.apache.org/security/vulnerabilities_24.html
Third Party Advisory https://security.netapp.com/advisory/ntap-20240712-0001/
Third Party Advisory http://www.openwall.com/lists/oss-security/2024/07/01/8
Patch https://github.com/apache/httpd/commit/9a6157d1e2f7ab15963020381054b48782bc18cf
Vendor Advisory https://httpd.apache.org/security/vulnerabilities_24.html
Third Party Advisory https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2024-0018
Third Party Advisory https://security.netapp.com/advisory/ntap-20240712-0001/
Third Party Advisory https://www.blackhat.com/us-24/briefings/schedule/index.html#confusion-attacks-e...
Third Party Advisory https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2024-...
72
/ 100
critical-risk
Severity 31/34 · Critical
Exploitability 27/34 · High
Exposure 14/34 · Moderate