{"resultsPerPage":1,"startIndex":0,"totalResults":1,"format":"NVD_CVE","version":"2.0","timestamp":"2026-04-19T15:54:30.766","vulnerabilities":[{"cve":{"id":"CVE-2023-36811","sourceIdentifier":"security-advisories@github.com","published":"2023-08-30T18:15:09.487","lastModified":"2024-11-21T08:10:38.807","vulnStatus":"Modified","cveTags":[],"descriptions":[{"lang":"en","value":"borgbackup is an opensource, deduplicating archiver with compression and authenticated encryption. A flaw in the cryptographic authentication scheme in borgbackup allowed an attacker to fake archives and potentially indirectly cause backup data loss in the repository. The attack requires an attacker to be able to: 1. insert files (with no additional headers) into backups and 2. gain write access to the repository. This vulnerability does not disclose plaintext to the attacker, nor does it affect the authenticity of existing archives. Creating plausible fake archives may be feasible for empty or small archives, but is unlikely for large archives. The issue has been fixed in borgbackup 1.2.5. Users are advised to upgrade. Additionally to installing the fixed code, users must follow the upgrade procedure as documented in the change log. Data loss after being attacked can be avoided by reviewing the archives (timestamp and contents valid and as expected) after any \"borg check --repair\" and before \"borg prune\". There are no known workarounds for this vulnerability."},{"lang":"es","value":"borgbackup es un archivador de duplicación de código abierto con compresión y cifrado autenticado. Una falla en el esquema de autenticación criptográfica en borgbackup permitió a un atacante falsificar archivos y potencialmente causar indirectamente la pérdida de datos de los respaldo en el repositorio. El ataque requiere que un atacante pueda: 1. insertar archivos (sin encabezados adicionales) en las copias de seguridad y 2. obtener acceso de escritura al repositorio. Esta vulnerabilidad no revela texto sin formato al atacante ni afecta la autenticidad de los archivos existentes. La creación de archivos falsos plausibles puede ser factible para archivos vacíos o pequeños, pero es poco probable para archivos grandes. El problema se solucionó en borgbackup 1.2.5. Se recomienda a los usuarios que actualicen. Además de instalar el código fijo, los usuarios deben seguir el procedimiento de actualización como se documenta en el registro de cambios. La pérdida de datos después de un ataque se puede evitar revisando los archivos (marca de tiempo y contenido válidos y esperados) después de cualquier \"borg check --repair\" y antes de \"borg prune\". No se conocen workarounds para esta vulnerabilidad."}],"metrics":{"cvssMetricV31":[{"source":"security-advisories@github.com","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:N","baseScore":4.7,"baseSeverity":"MEDIUM","attackVector":"LOCAL","attackComplexity":"HIGH","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"HIGH","availabilityImpact":"NONE"},"exploitabilityScore":1.0,"impactScore":3.6},{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:N","baseScore":4.7,"baseSeverity":"MEDIUM","attackVector":"LOCAL","attackComplexity":"HIGH","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"HIGH","availabilityImpact":"NONE"},"exploitabilityScore":1.0,"impactScore":3.6}]},"weaknesses":[{"source":"security-advisories@github.com","type":"Secondary","description":[{"lang":"en","value":"CWE-347"}]}],"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:borgbackup:borg:*:*:*:*:*:*:*:*","versionEndExcluding":"1.2.5","matchCriteriaId":"61C2D872-E840-4067-8CEE-A9DB11B89028"}]}]}],"references":[{"url":"https://github.com/borgbackup/borg/blob/1.2.5-cvedocs/docs/changes.rst#pre-125-archives-spoofing-vulnerability-cve-2023-36811","source":"security-advisories@github.com","tags":["Third Party Advisory"]},{"url":"https://github.com/borgbackup/borg/commit/3eb070191da10c2d3f7bc6484cf3d51c3045f884","source":"security-advisories@github.com","tags":["Patch"]},{"url":"https://github.com/borgbackup/borg/security/advisories/GHSA-8fjr-hghr-4m99","source":"security-advisories@github.com","tags":["Vendor Advisory"]},{"url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/5Q3OHXERTU547SEQ3YREZXHOCYNLVD63/","source":"security-advisories@github.com"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/XOZDFIYEBIOKSIEAXUJJJFUJTAJ7TF3C/","source":"security-advisories@github.com"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ZUCQSMAWOJBCRGF6XPKEZ2TPGAPNKIWV/","source":"security-advisories@github.com"},{"url":"https://github.com/borgbackup/borg/blob/1.2.5-cvedocs/docs/changes.rst#pre-125-archives-spoofing-vulnerability-cve-2023-36811","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Third Party Advisory"]},{"url":"https://github.com/borgbackup/borg/commit/3eb070191da10c2d3f7bc6484cf3d51c3045f884","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Patch"]},{"url":"https://github.com/borgbackup/borg/security/advisories/GHSA-8fjr-hghr-4m99","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Vendor Advisory"]},{"url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/5Q3OHXERTU547SEQ3YREZXHOCYNLVD63/","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/XOZDFIYEBIOKSIEAXUJJJFUJTAJ7TF3C/","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ZUCQSMAWOJBCRGF6XPKEZ2TPGAPNKIWV/","source":"af854a3a-2127-422b-91ae-364da2661108"}]}}]}