Trivial authentication bypass in Envoy
CVE-2022-29226

10CRITICAL

Key Information:

Vendor

Envoyproxy

Status
Envoy
Vendor
CVE Published:
9 June 2022

What is CVE-2022-29226?

Envoy is a cloud-native high-performance proxy. In versions prior to 1.22.1 the OAuth filter implementation does not include a mechanism for validating access tokens, so by design when the HMAC signed cookie is missing a full authentication flow should be triggered. However, the current implementation assumes that access tokens are always validated thus allowing access in the presence of any access token attached to the request. Users are advised to upgrade. There is no known workaround for this issue.

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Deploy the Patch

Affected Version(s)

envoy < 1.22.1

References

https://github.com/envoyproxy/envoy/commit/7ffda4e809dec7...
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https://github.com/envoyproxy/envoy/security/advisories/G...
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CVSS V3.1

Score:
10
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

JSON
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