CVE-2022-23628

{"id": "CVE-2022-23628", "metrics": {"cvssMetricV2": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"version": "2.0", "baseScore": 4.3, "accessVector": "NETWORK", "vectorString": "AV:N/AC:M/Au:N/C:N/I:P/A:N", "authentication": "NONE", "integrityImpact": "PARTIAL", "accessComplexity": "MEDIUM", "availabilityImpact": "NONE", "confidentialityImpact": "NONE"}, "acInsufInfo": false, "impactScore": 2.9, "baseSeverity": "MEDIUM", "obtainAllPrivilege": false, "exploitabilityScore": 8.6, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}], "cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 5.3, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N", "integrityImpact": "LOW", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "NONE"}, "impactScore": 1.4, "exploitabilityScore": 3.9}, {"type": "Secondary", "source": "security-advisories@github.com", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 6.3, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L", "integrityImpact": "LOW", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "LOW", "privilegesRequired": "LOW", "confidentialityImpact": "LOW"}, "impactScore": 3.4, "exploitabilityScore": 2.8}]}, "published": "2022-02-09T22:15:07.597", "references": [{"url": "https://github.com/open-policy-agent/opa/commit/932e4ffc37a590ace79e9b75ca4340288c220239", "tags": ["Patch", "Third Party Advisory"], "source": "security-advisories@github.com"}, {"url": "https://github.com/open-policy-agent/opa/commit/bfd984ddf93ef2c4963a08d4fdadae0bcf1a3717", "tags": ["Patch", "Third Party Advisory"], "source": "security-advisories@github.com"}, {"url": "https://github.com/open-policy-agent/opa/pull/3851", "tags": ["Issue Tracking", "Patch", "Third Party Advisory"], "source": "security-advisories@github.com"}, {"url": "https://github.com/open-policy-agent/opa/security/advisories/GHSA-hcw3-j74m-qc58", "tags": ["Exploit", "Patch", "Third Party Advisory"], "source": "security-advisories@github.com"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "security-advisories@github.com", "description": [{"lang": "en", "value": "CWE-682"}]}], "descriptions": [{"lang": "en", "value": "OPA is an open source, general-purpose policy engine. Under certain conditions, pretty-printing an abstract syntax tree (AST) that contains synthetic nodes could change the logic of some statements by reordering array literals. Example of policies impacted are those that parse and compare web paths. **All of these** three conditions have to be met to create an adverse effect: 1. An AST of Rego had to be **created programmatically** such that it ends up containing terms without a location (such as wildcard variables). 2. The AST had to be **pretty-printed** using the `github.com/open-policy-agent/opa/format` package. 3. The result of the pretty-printing had to be **parsed and evaluated again** via an OPA instance using the bundles, or the Golang packages. If any of these three conditions are not met, you are not affected. Notably, all three would be true if using **optimized bundles**, i.e. bundles created with `opa build -O=1` or higher. In that case, the optimizer would fulfil condition (1.), the result of that would be pretty-printed when writing the bundle to disk, fulfilling (2.). When the bundle was then used, we'd satisfy (3.). As a workaround users may disable optimization when creating bundles."}, {"lang": "es", "value": "OPA es un motor de pol\u00edticas de prop\u00f3sito general y de c\u00f3digo abierto. Bajo determinadas condiciones, la impresi\u00f3n bonita de un \u00e1rbol de sintaxis abstracta (AST) que contiene nodos sint\u00e9ticos podr\u00eda cambiar la l\u00f3gica de algunas sentencias al reordenar los literales del array. Un ejemplo de pol\u00edticas afectadas son las que analizan y comparan las rutas web. **Todas estas** tres condiciones tienen que cumplirse para crear un efecto adverso: 1. Un AST de Rego tuvo que ser **creado program\u00e1ticamente** de tal manera que termina conteniendo t\u00e9rminos sin ubicaci\u00f3n (como variables comod\u00edn). 2. El AST tuvo que ser **impreso** usando el paquete \"github.com/open-policy-agent/opa/format\". 3. El resultado de la impresi\u00f3n bonita tuvo que ser **analizado y evaluado de nuevo** por medio de una instancia OPA usando los paquetes, o los paquetes Golang. Si alguna de estas tres condiciones no es cumplida, no est\u00e1 afectado. En particular, las tres condiciones son cumplidas si son usados **paquetes optimizados**, es decir, paquetes creados con \"opa build -O=1\" o superior. En ese caso, el optimizador cumplir\u00eda la condici\u00f3n (1.), cuyo resultado ser\u00eda impreso al escribir el bundle en el disco, cumpliendo (2.). Cuando es usado el paquete, se cumplir\u00eda (3.). Como medida de mitigaci\u00f3n soluci\u00f3n, los usuarios pueden deshabilitar la optimizaci\u00f3n cuando son creados los paquetes"}], "lastModified": "2022-02-17T02:37:15.663", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:openpolicyagent:open_policy_agent:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "31E0CE8B-C614-4F87-81DB-D24E321F81FF", "versionEndExcluding": "0.37.0", "versionStartIncluding": "0.33.1"}], "operator": "OR"}]}], "sourceIdentifier": "security-advisories@github.com"}