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CVE-2023-26044

ReactPHP's HTTP server continues parsing unused multipart parts after reaching limits

Published: May 17, 2023Updated: Nov 21, 2024 Sources: CVE List NVD GHSACWE-400
5.3MEDIUM
NVD MITRE
EPSS Score
0.7%
Top 52.3%
CISA KEV
Not in KEV
Exploits
1 Known
Remediation
Patch Available
Self-Check
Not available

Description

react/http is an event-driven, streaming HTTP client and server implementation for ReactPHP. Previous versions of ReactPHP's HTTP server component contain a potential DoS vulnerability that can cause high CPU load when processing large HTTP request bodies. This vulnerability has little to no impact on the default configuration, but can be exploited when explicitly using the RequestBodyBufferMiddleware with very large settings. This might lead to consuming large amounts of CPU time for processing requests and significantly delay or slow down the processing of legitimate user requests. This issue has been addressed in release 1.9.0. Users are advised to upgrade. Users unable to upgrade may keep the request body limited using RequestBodyBufferMiddleware with a sensible value which should mitigate the issue. An infrastructure or DevOps workaround could be to place a reverse proxy in front of the ReactPHP HTTP server to filter out any excessive HTTP request bodies.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:NI:NA:L
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:NIntegrity
None
A:LAvailability
Low
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Weaknesses

CWE-400NVD-CWE-noinfo

Affected Products

reactphp
oss-project
httpLibrary
OSS Libraries / web-framework
Packagist
package-ecosystem
react/http
OSS Libraries

Exploitability

1 exploit source identified

Exploit details including PoC links, Metasploit modules, and scanner templates are available after registration.

View exploit details
Official Patch Available
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Attack Graph

Products CVE Techniques Tactics

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MITRE ATT&CK

1 technique
Impact
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References

https://github.com/reactphp/http/security/advisories/GHSA-95x4-j7vc-h8mf
github.com
https://github.com/reactphp/http/commit/9681f764b80c45ebfb5fe2ea7da5bd3babfcdcfd
github.com
https://github.com/php/php-src/security/advisories/GHSA-54hq-v5wp-fqgv
github.com
and 6 more references View all →
News mentions
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