CVE-2020-8843
7.4 · HIGHOverview
CVE-2020-8843 is a high-severity vulnerability affecting istio istio. It was published on February 14, 2020 and has a CVSS 3.1 base score of 7.4 (HIGH).
This vulnerability has a CVSS 3.1 base score of 7.4, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
Technical 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.
Remediation
Check the references section for vendor advisories and patches from istio. Update istio to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| istio | istio | 1.3.0 | Affected |
Frequently Asked Questions
What is CVE-2020-8843?
CVE-2020-8843 is a high-severity vulnerability affecting istio istio. It was published on February 14, 2020 and has a CVSS 3.1 base score of 7.4 (HIGH).
How severe is CVE-2020-8843?
This vulnerability has a CVSS 3.1 base score of 7.4, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
How do I fix or remediate CVE-2020-8843?
Check the references section for vendor advisories and patches from istio. Update istio to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2020-8843?
CyberStrike's AI-powered security agents can automatically detect CVE-2020-8843 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
How CyberStrike Helps
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