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Vulnerability Details : CVE-2021-39156

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.
Publish Date : 2021-08-24 Last Update Date : 2022-08-12
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- CVSS Scores & Vulnerability Types

CVSS Score
5.0
Confidentiality Impact Partial (There is considerable informational disclosure.)
Integrity Impact None (There is no impact to the integrity of the system)
Availability Impact None (There is no impact to the availability of the system.)
Access Complexity Low (Specialized access conditions or extenuating circumstances do not exist. Very little knowledge or skill is required to exploit. )
Authentication Not required (Authentication is not required to exploit the vulnerability.)
Gained Access None
Vulnerability Type(s) Bypass a restriction or similar
CWE ID 706

- Products Affected By CVE-2021-39156

# Product Type Vendor Product Version Update Edition Language
1 Application Istio Istio * * * * Version Details Vulnerabilities

- Number Of Affected Versions By Product

Vendor Product Vulnerable Versions
Istio Istio 1

- References For CVE-2021-39156

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

- Metasploit Modules Related To CVE-2021-39156

There are not any metasploit modules related to this CVE entry (Please visit www.metasploit.com for more information)
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