cve-2020-8843
Vulnerability from cvelistv5
Published
2020-02-14 18:45
Modified
2024-08-04 10:12
Severity ?
EPSS score ?
Summary
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.
References
▼ | URL | Tags | |
---|---|---|---|
cve@mitre.org | https://github.com/istio/istio/commits/master | Patch | |
cve@mitre.org | https://istio.io/news/security/ | Vendor Advisory | |
cve@mitre.org | https://istio.io/news/security/istio-security-2020-002/ | Vendor Advisory |
{ "containers": { "adp": [ { "providerMetadata": { "dateUpdated": "2024-08-04T10:12:10.957Z", "orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE" }, "references": [ { "tags": [ "x_refsource_MISC", "x_transferred" ], "url": "https://github.com/istio/istio/commits/master" }, { "tags": [ "x_refsource_MISC", "x_transferred" ], "url": "https://istio.io/news/security/" }, { "tags": [ "x_refsource_CONFIRM", "x_transferred" ], "url": "https://istio.io/news/security/istio-security-2020-002/" } ], "title": "CVE Program Container" } ], "cna": { "affected": [ { "product": "n/a", "vendor": "n/a", "versions": [ { "status": "affected", "version": "n/a" } ] } ], "descriptions": [ { "lang": "en", "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." } ], "problemTypes": [ { "descriptions": [ { "description": "n/a", "lang": "en", "type": "text" } ] } ], "providerMetadata": { "dateUpdated": "2020-02-14T18:45:19", "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "shortName": "mitre" }, "references": [ { "tags": [ "x_refsource_MISC" ], "url": "https://github.com/istio/istio/commits/master" }, { "tags": [ "x_refsource_MISC" ], "url": "https://istio.io/news/security/" }, { "tags": [ "x_refsource_CONFIRM" ], "url": "https://istio.io/news/security/istio-security-2020-002/" } ], "x_legacyV4Record": { "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": [ { "name": "https://github.com/istio/istio/commits/master", "refsource": "MISC", "url": "https://github.com/istio/istio/commits/master" }, { "name": "https://istio.io/news/security/", "refsource": "MISC", "url": "https://istio.io/news/security/" }, { "name": "https://istio.io/news/security/istio-security-2020-002/", "refsource": "CONFIRM", "url": "https://istio.io/news/security/istio-security-2020-002/" } ] } } } }, "cveMetadata": { "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "assignerShortName": "mitre", "cveId": "CVE-2020-8843", "datePublished": "2020-02-14T18:45:19", "dateReserved": "2020-02-10T00:00:00", "dateUpdated": "2024-08-04T10:12:10.957Z", "state": "PUBLISHED" }, "dataType": "CVE_RECORD", "dataVersion": "5.1", "meta": { "nvd": "{\"cve\":{\"id\":\"CVE-2020-8843\",\"sourceIdentifier\":\"cve@mitre.org\",\"published\":\"2020-02-14T19:15:10.683\",\"lastModified\":\"2020-02-19T16:16:00.003\",\"vulnStatus\":\"Analyzed\",\"descriptions\":[{\"lang\":\"en\",\"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.\"},{\"lang\":\"es\",\"value\":\"Se detect\u00f3 un problema en Istio versiones 1.3 hasta 1.3.6. En determinadas circunstancias, es posible omitir una pol\u00edtica Mixer configurada espec\u00edficamente. Istio-proxy acepta el encabezado x-istio-attributes en la entrada que puede ser usado para afectar las decisiones de la pol\u00edtica cuando la pol\u00edtica Mixer se aplica selectivamente a una fuente igual a la entrada. Para explotar esta vulnerabilidad, alguien tiene que codificar un archivo source.uid en este encabezado. Esta funcionalidad est\u00e1 deshabilitada por defecto en Istio versiones 1.3 y 1.4.\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"HIGH\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"NONE\",\"baseScore\":7.4,\"baseSeverity\":\"HIGH\"},\"exploitabilityScore\":2.2,\"impactScore\":5.2}],\"cvssMetricV2\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"2.0\",\"vectorString\":\"AV:N/AC:M/Au:N/C:P/I:P/A:N\",\"accessVector\":\"NETWORK\",\"accessComplexity\":\"MEDIUM\",\"authentication\":\"NONE\",\"confidentialityImpact\":\"PARTIAL\",\"integrityImpact\":\"PARTIAL\",\"availabilityImpact\":\"NONE\",\"baseScore\":5.8},\"baseSeverity\":\"MEDIUM\",\"exploitabilityScore\":8.6,\"impactScore\":4.9,\"acInsufInfo\":false,\"obtainAllPrivilege\":false,\"obtainUserPrivilege\":false,\"obtainOtherPrivilege\":false,\"userInteractionRequired\":false}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-20\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:istio:istio:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"1.3.0\",\"versionEndIncluding\":\"1.3.6\",\"matchCriteriaId\":\"A63CAC85-C108-4980-ABE3-6FED91D2ABA5\"}]}]}],\"references\":[{\"url\":\"https://github.com/istio/istio/commits/master\",\"source\":\"cve@mitre.org\",\"tags\":[\"Patch\"]},{\"url\":\"https://istio.io/news/security/\",\"source\":\"cve@mitre.org\",\"tags\":[\"Vendor Advisory\"]},{\"url\":\"https://istio.io/news/security/istio-security-2020-002/\",\"source\":\"cve@mitre.org\",\"tags\":[\"Vendor Advisory\"]}]}}" } }
Loading...
Loading...
Sightings
Author | Source | Type | Date |
---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.