CVE-2020-8843

CVSS V2 Medium 5.8 CVSS V3 High 7.4
Description
An issue was discovered in Istio 1.3 through 1.3.6. Under certain circumstances, it is possible to bypass a specifically configured Mixer policy. Istio-proxy accepts the x-istio-attributes header at ingress that can be used to affect policy decisions when Mixer policy selectively applies to a source equal to ingress. To exploit this vulnerability, someone has to encode a source.uid in this header. This feature is disabled by default in Istio 1.3 and 1.4.
Overview
  • CVE ID
  • CVE-2020-8843
  • Assigner
  • cve@mitre.org
  • Vulnerability Status
  • Analyzed
  • Published Version
  • 2020-02-14T19:15:10
  • Last Modified Date
  • 2020-02-19T16:16:00
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
cpe:2.3:a:istio:istio:*:*:*:*:*:*:*:* 1 OR 1.3.0 1.3.6
CVSS Version 2
  • Version
  • 2.0
  • Vector String
  • AV:N/AC:M/Au:N/C:P/I:P/A:N
  • Access Vector
  • NETWORK
  • Access Compatibility
  • MEDIUM
  • Authentication
  • NONE
  • Confidentiality Impact
  • PARTIAL
  • Integrity Impact
  • PARTIAL
  • Availability Impact
  • NONE
  • Base Score
  • 5.8
  • Severity
  • MEDIUM
  • Exploitability Score
  • 8.6
  • Impact Score
  • 4.9
CVSS Version 3
  • Version
  • 3.1
  • Vector String
  • CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
  • Attack Vector
  • NETWORK
  • Attack Compatibility
  • HIGH
  • Privileges Required
  • NONE
  • User Interaction
  • NONE
  • Scope
  • UNCHANGED
  • Confidentiality Impact
  • HIGH
  • Availability Impact
  • NONE
  • Base Score
  • 7.4
  • Base Severity
  • HIGH
  • Exploitability Score
  • 2.2
  • Impact Score
  • 5.2
History
Created Old Value New Value Data Type Notes
2022-05-10 16:49:26 Added to TrackCVE
2022-12-04 11:24:45 2020-02-14T19:15Z 2020-02-14T19:15:10 CVE Published Date updated
2022-12-04 11:24:45 2020-02-19T16:16:00 CVE Modified Date updated
2022-12-04 11:24:45 Analyzed Vulnerability Status updated