Vulnerability Monitor

The vendors, products, and vulnerabilities you care about

CVE-2021-31921

Istio before 1.8.6 and 1.9.x before 1.9.5 contains a remotely exploitable vulnerability where an external client can access unexpected services in the cluster, bypassing authorization checks, when a gateway is configured with AUTO_PASSTHROUGH routing configuration.

Published

2021-06-02T16:15:08.927

Last Modified

2024-11-21T06:06:30.930

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 9.8 (CRITICAL)

CVSSv2 Vector

AV:N/AC:M/Au:N/C:P/I:P/A:P

  • Access Vector: NETWORK
  • Access Complexity: MEDIUM
  • Authentication: NONE
  • Confidentiality Impact: PARTIAL
  • Integrity Impact: PARTIAL
  • Availability Impact: PARTIAL
Exploitability Score

8.6

Impact Score

6.4

Weaknesses
  • Type: Primary
    CWE-862
Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Application istio istio < 1.8.6 Yes
Application istio istio < 1.9.5 Yes
References