Incorrect Authorization Affecting servicemesh-proxy package, versions <0:2.0.4-1.el8


Severity

Recommended
0.0
high
0
10

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
1.17% (64th percentile)

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  • Snyk IDSNYK-RHEL8-SERVICEMESHPROXY-4409465
  • published26 Mar 2023
  • disclosed11 May 2021

Introduced: 11 May 2021

CVE-2021-31920  (opens in a new tab)
CWE-863  (opens in a new tab)

How to fix?

Upgrade RHEL:8 servicemesh-proxy to version 0:2.0.4-1.el8 or higher.
This issue was patched in RHSA-2021:1538.

NVD Description

Note: Versions mentioned in the description apply only to the upstream servicemesh-proxy package and not the servicemesh-proxy package as distributed by RHEL. See How to fix? for RHEL:8 relevant fixed versions and status.

Istio before 1.8.6 and 1.9.x before 1.9.5 has a remotely exploitable vulnerability where an HTTP request path with multiple slashes or escaped slash characters (%2F or %5C) could potentially bypass an Istio authorization policy when path based authorization rules are used.

CVSS Base Scores

version 3.1