CVE-2023-27492

Envoy is an open source edge and service proxy designed for cloud-native applications. Prior to versions 1.26.0, 1.25.3, 1.24.4, 1.23.6, and 1.22.9, the Lua filter is vulnerable to denial of service. Attackers can send large request bodies for routes that have Lua filter enabled and trigger crashes. As of versions versions 1.26.0, 1.25.3, 1.24.4, 1.23.6, and 1.22.9, Envoy no longer invokes the Lua coroutine if the filter has been reset. As a workaround for those whose Lua filter is buffering all requests/ responses, mitigate by using the buffer filter to avoid triggering the local reply in the Lua filter.

CVSS v3 4.8 MEDIUM

4.8^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.2 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required LOW

User Interaction REQUIRED

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/envoyproxy/envoy/security/advisories/GHSA-wpc2-2jp6-ppg2	Exploit Vendor Advisory
https://github.com/envoyproxy/envoy/security/advisories/GHSA-wpc2-2jp6-ppg2	Exploit Vendor Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:envoyproxy:envoy::::::::
	cpe:2.3:a:envoyproxy:envoy::::::::
	cpe:2.3:a:envoyproxy:envoy::::::::
	cpe:2.3:a:envoyproxy:envoy::::::::

History

21 Nov 2024, 07:53

Type	Values Removed	Values Added
New CVE

Information

Published : 2023-04-04 19:15

Updated : 2024-11-21 07:53

NVD link : CVE-2023-27492

Mitre link : CVE-2023-27492

CVE.ORG link : CVE-2023-27492

JSON object : View

Products Affected

envoyproxy

envoy

CWE

CWE-770

Allocation of Resources Without Limits or Throttling

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