CVE-2021-39156

Name
CVE-2021-39156
Description
Istio is an open source platform for providing a uniform way to integrate microservices, manage traffic flow across microservices, enforce policies and aggregate telemetry data. 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 are available in Istio 1.11.1, Istio 1.10.4 and Istio 1.9.8. As a work around a Lua filter may be written to normalize the path.
NVD Severity
medium
Other trackers
Mailing lists
Exploits
Forges
GitHub (code, issues), Aports (code, issues)

References

Type URI
MISC https://istio.io/latest/news/security/istio-security-2021-008
CONFIRM https://github.com/istio/istio/security/advisories/GHSA-hqxw-mm44-gc4r

Match rules

CPE URI Source package Min version Max version
cpe:2.3:a:istio:istio:*:*:*:*:*:*:*:* istio >= None < 1.9.8
cpe:2.3:a:istio:istio:*:*:*:*:*:*:*:* istio >= 1.10.0 < 1.10.3
cpe:2.3:a:istio:istio:*:*:*:*:*:*:*:* istio >= 1.11.0 < 1.11.1

Vulnerable and fixed packages

Source package Branch Version Maintainer Status