BIT-envoy-2021-39206

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    BIT-envoy-2021-39206

    Published: 6 Mar 2024Last Modified: 8 Sept 2026

    Summary: Incorrect Authorization with specially crafted requests

    Details: Pomerium is an open source identity-aware access proxy. Envoy, which Pomerium is based on, contains two authorization related vulnerabilities CVE-2021-32777 and CVE-2021-32779. This may lead to incorrect routing or authorization policy decisions. With specially crafted requests, incorrect authorization or routing decisions may be made by Pomerium. Pomerium v0.14.8 and v0.15.1 contain an upgraded envoy binary with these vulnerabilities patched. This issue can only be triggered when using path prefix based policy. Removing any such policies should provide mitigation.

    References: https://github.com/envoyproxy/envoy/security/advisories/GHSA-6g4j-5vrw-2m8h, https://github.com/envoyproxy/envoy/security/advisories/GHSA-r222-74fw-jqr9, https://github.com/pomerium/pomerium/security/advisories/GHSA-cfc2-wjcm-c8fm, https://groups.google.com/g/envoy-announce/c/5xBpsEZZDfE/m/wD05NZBbAgAJ, https://nvd.nist.gov/vuln/detail/CVE-2021-39206

    Affected packages

    Package

    Name: envoy

    Purl: pkg:bitnami/envoy

    Affected ranges

    Type: SEMVER

    Events:

    Introduced- 0
    Fixed -1.16.5

    Affected versions

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High
    BIT-envoy-2021-39206 | CVE-DB