Vulnerability Details CVE-2020-8595
Istio versions 1.2.10 (End of Life) and prior, 1.3 through 1.3.7, and 1.4 through 1.4.3 allows authentication bypass. The Authentication Policy exact-path matching logic can allow unauthorized access to HTTP paths even if they are configured to be only accessed after presenting a valid JWT token. For example, an attacker can add a ? or # character to a URI that would otherwise satisfy an exact-path match.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.008
EPSS Ranking 74.1%
CVSS Severity
CVSS v3 Score 7.3
CVSS v2 Score 7.5
References
- https://access.redhat.com/errata/RHSA-2020:0477
- https://access.redhat.com/security/cve/cve-2020-8595
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-8595
- https://github.com/istio/istio/commits/master
- https://istio.io/news/security/
- https://istio.io/news/security/istio-security-2020-001/
- https://access.redhat.com/errata/RHSA-2020:0477
- https://access.redhat.com/security/cve/cve-2020-8595
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-8595
- https://github.com/istio/istio/commits/master
- https://istio.io/news/security/
- https://istio.io/news/security/istio-security-2020-001/
Products affected by CVE-2020-8595
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cpe:2.3:a:istio:istio:1.3
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cpe:2.3:a:istio:istio:1.3.0
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cpe:2.3:a:istio:istio:1.3.1
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cpe:2.3:a:istio:istio:1.3.2
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cpe:2.3:a:istio:istio:1.3.3
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cpe:2.3:a:istio:istio:1.3.4
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cpe:2.3:a:istio:istio:1.3.5
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cpe:2.3:a:istio:istio:1.3.6
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cpe:2.3:a:istio:istio:1.3.7
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cpe:2.3:a:istio:istio:1.4.0
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cpe:2.3:a:istio:istio:1.4.1
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cpe:2.3:a:istio:istio:1.4.2
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cpe:2.3:a:istio:istio:1.4.3
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cpe:2.3:a:redhat:openshift_service_mesh:1.0
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cpe:2.3:o:redhat:enterprise_linux:8.0