CVE-2021-32842

{"containers": {"cna": {"affected": [{"product": "sharpziplib", "vendor": "icsharpcode", "versions": [{"lessThan": "1.3.3", "status": "affected", "version": "1.3.3", "versionType": "custom"}, {"lessThan": "1.0.0*", "status": "affected", "version": "1.0.0", "versionType": "custom"}]}], "descriptions": [{"lang": "en", "value": "SharpZipLib (or #ziplib) is a Zip, GZip, Tar and BZip2 library. Starting version 1.0.0 and prior to version 1.3.3, a check was added if the destination file is under a destination directory. However, it is not enforced that `_baseDirectory` ends with slash. If the _baseDirectory is not slash terminated like `/home/user/dir` it is possible to create a file with a name thats begins as the destination directory one level up from the directory, i.e. `/home/user/dir.sh`. Because of the file name and destination directory constraints, the arbitrary file creation impact is limited and depends on the use case. Version 1.3.3 fixed this vulnerability."}], "metrics": [{"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "NONE", "baseScore": 4, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "LOW", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N", "version": "3.1"}}], "problemTypes": [{"descriptions": [{"cweId": "CWE-22", "description": "CWE-22 Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"dateUpdated": "2022-01-26T21:10:10.000Z", "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M"}, "references": [{"tags": ["x_refsource_CONFIRM"], "url": "https://securitylab.github.com/advisories/GHSL-2021-125-sharpziplib/"}, {"tags": ["x_refsource_MISC"], "url": "https://github.com/icsharpcode/SharpZipLib/releases/tag/v1.3.3"}], "source": {"discovery": "INTERNAL"}, "title": "Path Traversal in SharpZipLib", "x_generator": {"engine": "Vulnogram 0.0.9"}, "x_legacyV4Record": {"CVE_data_meta": {"ASSIGNER": "security-advisories@github.com", "ID": "CVE-2021-32842", "STATE": "PUBLIC", "TITLE": "Path Traversal in SharpZipLib"}, "affects": {"vendor": {"vendor_data": [{"product": {"product_data": [{"product_name": "sharpziplib", "version": {"version_data": [{"version_affected": "<", "version_name": "1.3.3", "version_value": "1.3.3"}, {"version_affected": ">=", "version_name": "1.0.0", "version_value": "1.0.0"}]}}]}, "vendor_name": "icsharpcode"}]}}, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": {"description_data": [{"lang": "eng", "value": "SharpZipLib (or #ziplib) is a Zip, GZip, Tar and BZip2 library. Starting version 1.0.0 and prior to version 1.3.3, a check was added if the destination file is under a destination directory. However, it is not enforced that `_baseDirectory` ends with slash. If the _baseDirectory is not slash terminated like `/home/user/dir` it is possible to create a file with a name thats begins as the destination directory one level up from the directory, i.e. `/home/user/dir.sh`. Because of the file name and destination directory constraints, the arbitrary file creation impact is limited and depends on the use case. Version 1.3.3 fixed this vulnerability."}]}, "generator": {"engine": "Vulnogram 0.0.9"}, "impact": {"cvss": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "NONE", "baseScore": 4, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "LOW", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N", "version": "3.1"}}, "problemtype": {"problemtype_data": [{"description": [{"lang": "eng", "value": "CWE-22 Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')"}]}]}, "references": {"reference_data": [{"name": "https://securitylab.github.com/advisories/GHSL-2021-125-sharpziplib/", "refsource": "CONFIRM", "url": "https://securitylab.github.com/advisories/GHSL-2021-125-sharpziplib/"}, {"name": "https://github.com/icsharpcode/SharpZipLib/releases/tag/v1.3.3", "refsource": "MISC", "url": "https://github.com/icsharpcode/SharpZipLib/releases/tag/v1.3.3"}]}, "source": {"discovery": "INTERNAL"}}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-03T23:33:55.920Z"}, "title": "CVE Program Container", "references": [{"tags": ["x_refsource_CONFIRM", "x_transferred"], "url": "https://securitylab.github.com/advisories/GHSL-2021-125-sharpziplib/"}, {"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://github.com/icsharpcode/SharpZipLib/releases/tag/v1.3.3"}]}, {"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2025-04-22T15:51:39.713749Z", "id": "CVE-2021-32842", "options": [{"Exploitation": "poc"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2025-04-22T18:32:19.882Z"}}]}, "cveMetadata": {"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "assignerShortName": "GitHub_M", "cveId": "CVE-2021-32842", "datePublished": "2022-01-26T21:10:10.000Z", "dateReserved": "2021-05-12T00:00:00.000Z", "dateUpdated": "2025-04-22T18:32:19.882Z", "state": "PUBLISHED"}, "dataType": "CVE_RECORD", "dataVersion": "5.1"}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CVE Program Container", "references": [{"url": "https://securitylab.github.com/advisories/GHSL-2021-125-sharpziplib/", "tags": ["x_refsource_CONFIRM", "x_transferred"]}, {"url": "https://github.com/icsharpcode/SharpZipLib/releases/tag/v1.3.3", "tags": ["x_refsource_MISC", "x_transferred"]}], "providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-03T23:33:55.920Z"}}, {"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2021-32842", "role": "CISA Coordinator", "options": [{"Exploitation": "poc"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2025-04-22T15:51:39.713749Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2025-04-22T15:51:46.069Z"}}], "cna": {"title": "Path Traversal in SharpZipLib", "source": {"discovery": "INTERNAL"}, "metrics": [{"cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 4, "attackVector": "LOCAL", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:L/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"}}], "affected": [{"vendor": "icsharpcode", "product": "sharpziplib", "versions": [{"status": "affected", "version": "1.3.3", "lessThan": "1.3.3", "versionType": "custom"}, {"status": "affected", "version": "1.0.0", "lessThan": "1.0.0*", "versionType": "custom"}]}], "references": [{"url": "https://securitylab.github.com/advisories/GHSL-2021-125-sharpziplib/", "tags": ["x_refsource_CONFIRM"]}, {"url": "https://github.com/icsharpcode/SharpZipLib/releases/tag/v1.3.3", "tags": ["x_refsource_MISC"]}], "x_generator": {"engine": "Vulnogram 0.0.9"}, "descriptions": [{"lang": "en", "value": "SharpZipLib (or #ziplib) is a Zip, GZip, Tar and BZip2 library. Starting version 1.0.0 and prior to version 1.3.3, a check was added if the destination file is under a destination directory. However, it is not enforced that `_baseDirectory` ends with slash. If the _baseDirectory is not slash terminated like `/home/user/dir` it is possible to create a file with a name thats begins as the destination directory one level up from the directory, i.e. `/home/user/dir.sh`. Because of the file name and destination directory constraints, the arbitrary file creation impact is limited and depends on the use case. Version 1.3.3 fixed this vulnerability."}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-22", "description": "CWE-22 Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2022-01-26T21:10:10.000Z"}, "x_legacyV4Record": {"impact": {"cvss": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 4, "attackVector": "LOCAL", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:L/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"}}, "source": {"discovery": "INTERNAL"}, "affects": {"vendor": {"vendor_data": [{"product": {"product_data": [{"version": {"version_data": [{"version_name": "1.3.3", "version_value": "1.3.3", "version_affected": "<"}, {"version_name": "1.0.0", "version_value": "1.0.0", "version_affected": ">="}]}, "product_name": "sharpziplib"}]}, "vendor_name": "icsharpcode"}]}}, "data_type": "CVE", "generator": {"engine": "Vulnogram 0.0.9"}, "references": {"reference_data": [{"url": "https://securitylab.github.com/advisories/GHSL-2021-125-sharpziplib/", "name": "https://securitylab.github.com/advisories/GHSL-2021-125-sharpziplib/", "refsource": "CONFIRM"}, {"url": "https://github.com/icsharpcode/SharpZipLib/releases/tag/v1.3.3", "name": "https://github.com/icsharpcode/SharpZipLib/releases/tag/v1.3.3", "refsource": "MISC"}]}, "data_format": "MITRE", "description": {"description_data": [{"lang": "eng", "value": "SharpZipLib (or #ziplib) is a Zip, GZip, Tar and BZip2 library. Starting version 1.0.0 and prior to version 1.3.3, a check was added if the destination file is under a destination directory. However, it is not enforced that `_baseDirectory` ends with slash. If the _baseDirectory is not slash terminated like `/home/user/dir` it is possible to create a file with a name thats begins as the destination directory one level up from the directory, i.e. `/home/user/dir.sh`. Because of the file name and destination directory constraints, the arbitrary file creation impact is limited and depends on the use case. Version 1.3.3 fixed this vulnerability."}]}, "problemtype": {"problemtype_data": [{"description": [{"lang": "eng", "value": "CWE-22 Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')"}]}]}, "data_version": "4.0", "CVE_data_meta": {"ID": "CVE-2021-32842", "STATE": "PUBLIC", "TITLE": "Path Traversal in SharpZipLib", "ASSIGNER": "security-advisories@github.com"}}}}, "cveMetadata": {"cveId": "CVE-2021-32842", "state": "PUBLISHED", "dateUpdated": "2025-04-22T18:32:19.882Z", "dateReserved": "2021-05-12T00:00:00.000Z", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "datePublished": "2022-01-26T21:10:10.000Z", "assignerShortName": "GitHub_M"}, "dataVersion": "5.1"}

{"affected": [{"affectedData": [{"product": "sharpziplib", "vendor": "icsharpcode", "versions": [{"lessThan": "1.3.3", "status": "affected", "version": "1.3.3", "versionType": "custom"}, {"lessThan": "1.0.0*", "status": "affected", "version": "1.0.0", "versionType": "custom"}]}], "source": "security-advisories@github.com"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:sharpziplib_project:sharpziplib:*:*:*:*:*:*:*:*", "matchCriteriaId": "40FB39D8-CA1E-4EB7-BA3F-7FA5020D772E", "versionEndExcluding": "1.3.3", "versionStartIncluding": "1.0.0", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "SharpZipLib (or #ziplib) is a Zip, GZip, Tar and BZip2 library. Starting version 1.0.0 and prior to version 1.3.3, a check was added if the destination file is under a destination directory. However, it is not enforced that `_baseDirectory` ends with slash. If the _baseDirectory is not slash terminated like `/home/user/dir` it is possible to create a file with a name thats begins as the destination directory one level up from the directory, i.e. `/home/user/dir.sh`. Because of the file name and destination directory constraints, the arbitrary file creation impact is limited and depends on the use case. Version 1.3.3 fixed this vulnerability."}, {"lang": "es", "value": "SharpZipLib (o #ziplib) es una biblioteca Zip, GZip, Tar y BZip2. A partir de la versi\u00f3n 1.0.0 y versiones anteriores a 1.3.3, fue a\u00f1adida una comprobaci\u00f3n de si el archivo de destino est\u00e1 bajo un directorio de destino. Sin embargo, no es exigido que \"_baseDirectory\" termine en barra. Si el directorio base no termina en barra como \"/home/usuario/dir\" es posible crear un archivo con un nombre que comienza como el directorio de destino un nivel m\u00e1s arriba del directorio, por ejemplo \"/home/usuario/dir.sh\". Debido a las restricciones del nombre del archivo y del directorio de destino, el impacto de la creaci\u00f3n arbitraria de archivos es limitado y depende del caso de uso. La versi\u00f3n 1.3.3 ha corregido esta vulnerabilidad"}], "id": "CVE-2021-32842", "lastModified": "2026-06-17T03:53:44.513", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "LOW", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "NONE", "baseScore": 5.0, "confidentialityImpact": "NONE", "integrityImpact": "PARTIAL", "vectorString": "AV:N/AC:L/Au:N/C:N/I:P/A:N", "version": "2.0"}, "exploitabilityScore": 10.0, "impactScore": 2.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "NONE", "baseScore": 4.0, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "LOW", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N", "version": "3.1"}, "exploitabilityScore": 2.5, "impactScore": 1.4, "source": "security-advisories@github.com", "type": "Secondary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 5.3, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "LOW", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 1.4, "source": "nvd@nist.gov", "type": "Primary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2021-32842", "options": [{"exploitation": "poc"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2025-04-22T15:51:39.713749Z", "version": "2.0.3"}}]}, "published": "2022-01-26T21:15:13.337", "references": [{"source": "security-advisories@github.com", "tags": ["Release Notes", "Third Party Advisory"], "url": "https://github.com/icsharpcode/SharpZipLib/releases/tag/v1.3.3"}, {"source": "security-advisories@github.com", "tags": ["Exploit", "Third Party Advisory"], "url": "https://securitylab.github.com/advisories/GHSL-2021-125-sharpziplib/"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Release Notes", "Third Party Advisory"], "url": "https://github.com/icsharpcode/SharpZipLib/releases/tag/v1.3.3"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Exploit", "Third Party Advisory"], "url": "https://securitylab.github.com/advisories/GHSL-2021-125-sharpziplib/"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-22"}], "source": "security-advisories@github.com", "type": "Secondary"}, {"description": [{"lang": "en", "value": "CWE-22"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{}

{}