Assessment
Why it matters
CISA lists this vulnerability as known to be exploited; exploitation is confirmed; EPSS is 100.0%; technical severity is CVSS 9.1.
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.
Who should care
- Teams operating HTTP Server, Ontap 9, Sma 200 Firmware +4 more
- Vulnerability and exposure management teams
- Security operations teams monitoring exploitation activity
Response plan
What I would do
- Confirm whether HTTP Server, Ontap 9, Sma 200 Firmware +4 more is present in the environment.
- Identify affected versions and establish whether vulnerable services are exposed or reachable.
- Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
- Review relevant security telemetry for evidence of attempted or successful exploitation.
- Document the remediation decision and track it to verified completion.
Vendor remediation
Patch and remediation links
Use the vendor source below to confirm the correct fixed version, package or mitigation for your affected product.
Technical details
- CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
- CWE
- CWE-116
- Affected versions
- Apache HTTP Server (Start Including: 2.4.0, End Excluding: 2.4.60); Netapp Ontap 9 (Version: -); SonicWall Sma 200 Firmware (End Excluding: 10.2.1.14-75sv); SonicWall Sma 210 Firmware (End Excluding: 10.2.1.14-75sv); SonicWall Sma 400 Firmware (End Excluding: 10.2.1.14-75sv); SonicWall Sma 410 Firmware (End Excluding: 10.2.1.14-75sv); SonicWall Sma 500v Firmware (End Excluding: 10.2.1.14-75sv)
- Published
- 1 July 2024
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
Signal timeline
- CVE published
- Added to CISA KEV
- Latest EPSS score: 100.0%
- Signal calculated at 84