cve-2020-27780
Vulnerability from cvelistv5
Published
2020-12-17 23:55
Modified
2024-08-04 16:25
Severity ?
EPSS score ?
Summary
A flaw was found in Linux-Pam in versions prior to 1.5.1 in the way it handle empty passwords for non-existing users. When the user doesn't exist PAM try to authenticate with root and in the case of an empty password it successfully authenticate.
References
▼ | URL | Tags | |
---|---|---|---|
secalert@redhat.com | https://bugzilla.redhat.com/show_bug.cgi?id=1901094 | Issue Tracking, Third Party Advisory | |
af854a3a-2127-422b-91ae-364da2661108 | https://bugzilla.redhat.com/show_bug.cgi?id=1901094 | Issue Tracking, Third Party Advisory |
{ containers: { adp: [ { providerMetadata: { dateUpdated: "2024-08-04T16:25:42.438Z", orgId: "af854a3a-2127-422b-91ae-364da2661108", shortName: "CVE", }, references: [ { tags: [ "x_refsource_MISC", "x_transferred", ], url: "https://bugzilla.redhat.com/show_bug.cgi?id=1901094", }, ], title: "CVE Program Container", }, ], cna: { affected: [ { product: "pam", vendor: "n/a", versions: [ { status: "affected", version: "pam 1.5.1", }, ], }, ], descriptions: [ { lang: "en", value: "A flaw was found in Linux-Pam in versions prior to 1.5.1 in the way it handle empty passwords for non-existing users. When the user doesn't exist PAM try to authenticate with root and in the case of an empty password it successfully authenticate.", }, ], problemTypes: [ { descriptions: [ { cweId: "CWE-287", description: "CWE-287", lang: "en", type: "CWE", }, ], }, ], providerMetadata: { dateUpdated: "2020-12-17T23:55:45", orgId: "53f830b8-0a3f-465b-8143-3b8a9948e749", shortName: "redhat", }, references: [ { tags: [ "x_refsource_MISC", ], url: "https://bugzilla.redhat.com/show_bug.cgi?id=1901094", }, ], x_legacyV4Record: { CVE_data_meta: { ASSIGNER: "secalert@redhat.com", ID: "CVE-2020-27780", STATE: "PUBLIC", }, affects: { vendor: { vendor_data: [ { product: { product_data: [ { product_name: "pam", version: { version_data: [ { version_value: "pam 1.5.1", }, ], }, }, ], }, vendor_name: "n/a", }, ], }, }, data_format: "MITRE", data_type: "CVE", data_version: "4.0", description: { description_data: [ { lang: "eng", value: "A flaw was found in Linux-Pam in versions prior to 1.5.1 in the way it handle empty passwords for non-existing users. When the user doesn't exist PAM try to authenticate with root and in the case of an empty password it successfully authenticate.", }, ], }, problemtype: { problemtype_data: [ { description: [ { lang: "eng", value: "CWE-287", }, ], }, ], }, references: { reference_data: [ { name: "https://bugzilla.redhat.com/show_bug.cgi?id=1901094", refsource: "MISC", url: "https://bugzilla.redhat.com/show_bug.cgi?id=1901094", }, ], }, }, }, }, cveMetadata: { assignerOrgId: "53f830b8-0a3f-465b-8143-3b8a9948e749", assignerShortName: "redhat", cveId: "CVE-2020-27780", datePublished: "2020-12-17T23:55:45", dateReserved: "2020-10-27T00:00:00", dateUpdated: "2024-08-04T16:25:42.438Z", state: "PUBLISHED", }, dataType: "CVE_RECORD", dataVersion: "5.1", "vulnerability-lookup:meta": { nvd: "{\"cve\":{\"id\":\"CVE-2020-27780\",\"sourceIdentifier\":\"secalert@redhat.com\",\"published\":\"2020-12-18T00:15:14.330\",\"lastModified\":\"2024-11-21T05:21:49.307\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"A flaw was found in Linux-Pam in versions prior to 1.5.1 in the way it handle empty passwords for non-existing users. When the user doesn't exist PAM try to authenticate with root and in the case of an empty password it successfully authenticate.\"},{\"lang\":\"es\",\"value\":\"Se encontró un fallo en Linux-Pam en versiones anteriores a 1.5.1 en la manera en que maneja contraseñas vacías para usuarios inexistentes. Cuando el usuario no existe, PAM intenta autenticarse con root y en el caso de una contraseña vacía, es autenticado con éxito\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H\",\"baseScore\":9.8,\"baseSeverity\":\"CRITICAL\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":3.9,\"impactScore\":5.9}],\"cvssMetricV2\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"2.0\",\"vectorString\":\"AV:N/AC:L/Au:N/C:C/I:C/A:C\",\"baseScore\":10.0,\"accessVector\":\"NETWORK\",\"accessComplexity\":\"LOW\",\"authentication\":\"NONE\",\"confidentialityImpact\":\"COMPLETE\",\"integrityImpact\":\"COMPLETE\",\"availabilityImpact\":\"COMPLETE\"},\"baseSeverity\":\"HIGH\",\"exploitabilityScore\":10.0,\"impactScore\":10.0,\"acInsufInfo\":false,\"obtainAllPrivilege\":false,\"obtainUserPrivilege\":false,\"obtainOtherPrivilege\":false,\"userInteractionRequired\":false}]},\"weaknesses\":[{\"source\":\"secalert@redhat.com\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-287\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:linux-pam:linux-pam:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"1.5.0\",\"versionEndExcluding\":\"1.5.1\",\"matchCriteriaId\":\"693B7D7D-6BD3-4E5F-9E03-048B5BA832E7\"}]}]}],\"references\":[{\"url\":\"https://bugzilla.redhat.com/show_bug.cgi?id=1901094\",\"source\":\"secalert@redhat.com\",\"tags\":[\"Issue Tracking\",\"Third Party Advisory\"]},{\"url\":\"https://bugzilla.redhat.com/show_bug.cgi?id=1901094\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Issue Tracking\",\"Third Party Advisory\"]}]}}", }, }
Log in or create an account to share your comment.
Security Advisory comment format.
This schema specifies the format of a comment related to a security advisory.
Title of the comment
Description of the comment
Loading…
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.