GHSA-hqxw-mm44-gc4r

Source

https://github.com/advisories/GHSA-hqxw-mm44-gc4r

Import Source

https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2021/08/GHSA-hqxw-mm44-gc4r/GHSA-hqxw-mm44-gc4r.json

JSON Data

https://api.osv.dev/v1/vulns/GHSA-hqxw-mm44-gc4r

Aliases

CVE-2021-39156

Related

Published

2021-08-30T16:16:14Z

Modified

2024-07-15T22:12:26.160086Z

Severity

8.1 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N CVSS Calculator

Summary

Istio Fragments in Path May Lead to Authorization Policy Bypass

Details

Impact

Istio 1.11.0, 1.10.3 and below, and 1.9.7 and below contain a remotely exploitable vulnerability where an HTTP request with #fragment in the path may bypass Istio’s URI path based authorization policies.

Patches

Istio 1.11.1 and above
Istio 1.10.4 and above
Istio 1.9.8 and above

Workarounds

A Lua filter may be written to normalize the path. This is similar to the Path normalization presented in the Security Best Practices guide.

References

More details can be found in the Istio Security Bulletin

For more information

If you have any questions or comments about this advisory, please email us at istio-security-vulnerability-reports@googlegroups.com

Database specific

{
    "nvd_published_at": "2021-08-24T23:15:00Z",
    "github_reviewed_at": "2021-08-25T22:28:17Z",
    "severity": "HIGH",
    "github_reviewed": true,
    "cwe_ids": [
        "CWE-706",
        "CWE-863"
    ]
}

References