CVE-2023-27492

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. 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.

6.5 /10

CVSS v3 : MEDIUM

V3 Legend

Vector :

Exploitability : 2.8 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

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
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

07 Nov 2023, 04:09

Type Values Removed Values Added
Summary 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. 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.

11 Apr 2023, 14:43

Type Values Removed Values Added
References (MISC) https://github.com/envoyproxy/envoy/security/advisories/GHSA-wpc2-2jp6-ppg2 - (MISC) https://github.com/envoyproxy/envoy/security/advisories/GHSA-wpc2-2jp6-ppg2 - Exploit, Vendor Advisory
CVSS v2 : unknown
v3 : unknown 		v2 : unknown
v3 : 6.5
First Time Envoyproxy
Envoyproxy envoy
CPE cpe:2.3:a:envoyproxy:envoy:*:*:*:*:*:*:*:*

04 Apr 2023, 19:15

Type Values Removed Values Added
New CVE
Information

Published : 2023-04-04 19:15

Updated : 2023-12-10 15:01

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