{ "CVE_data_meta": { "ASSIGNER": "cve@mitre.org", "ID": "CVE-2020-8843", "STATE": "PUBLIC" }, "affects": { "vendor": { "vendor_data": [ { "product": { "product_data": [ { "product_name": "n/a", "version": { "version_data": [ { "version_value": "n/a" } ] } } ] }, "vendor_name": "n/a" } ] } }, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": { "description_data": [ { "lang": "eng", "value": "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." } ] }, "problemtype": { "problemtype_data": [ { "description": [ { "lang": "eng", "value": "n/a" } ] } ] }, "references": { "reference_data": [ { "url": "https://github.com/istio/istio/commits/master", "refsource": "MISC", "name": "https://github.com/istio/istio/commits/master" }, { "url": "https://istio.io/news/security/", "refsource": "MISC", "name": "https://istio.io/news/security/" }, { "refsource": "CONFIRM", "name": "https://istio.io/news/security/istio-security-2020-002/", "url": "https://istio.io/news/security/istio-security-2020-002/" } ] } }