{"schemaVersion":3,"id":"CVE-2012-3440","aliases":["RHSA-2012:1149"],"status":"published","duplicateOf":null,"title":null,"description":"A certain Red Hat script for sudo 1.7.2 on Red Hat Enterprise Linux (RHEL) 5 allows local users to overwrite arbitrary files via a symlink attack on the /var/tmp/nsswitch.conf.bak temporary file.","dates":{"published":"2012-08-08T10:00:00.000Z","modified":"2024-08-06T20:05:12.637Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":5.6,"severity":"medium","version":"2.0","versionLabel":"v2.0","source":"NVD","vector":"AV:L/AC:H/Au:N/C:N/I:C/A:C","computed":false,"selection":"backend-summary"},"metrics":[{"version":"2.0","versionLabel":"v2.0","source":"NVD","score":5.6,"severity":"medium","vector":"AV:L/AC:H/Au:N/C:N/I:C/A:C","exploitability":null,"impact":null,"computed":false}]},"epss":{"probability":0.00435,"percentile":0.36451,"severity":"low","asOf":"2026-10-20T00:00:00.000Z","change":{"pp":0,"baselineDate":"2026-09-20T00:00:00.000Z","baselineScore":0.00435},"history":[{"date":"2026-09-14T00:00:00.000Z","score":0.00435,"percentile":null},{"date":"2026-09-15T00:00:00.000Z","score":0.00435,"percentile":null},{"date":"2026-09-16T00:00:00.000Z","score":0.00435,"percentile":null},{"date":"2026-09-17T00:00:00.000Z","score":0.00435,"percentile":null},{"date":"2026-09-18T00:00:00.000Z","score":0.00435,"percentile":null},{"date":"2026-09-19T00:00:00.000Z","score":0.00435,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.00435,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.00435,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.00435,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.00435,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.00435,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.00435,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.00435,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.00435,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.00435,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.00435,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.00435,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.00435,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.00435,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.00435,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.00435,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.00435,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.00435,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.00435,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.00435,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.00435,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.00435,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.00435,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.00435,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.00435,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.00435,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.00435,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.00435,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.00435,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.00435,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.00435,"percentile":null},{"date":"2026-10-20T00:00:00.000Z","score":0.00435,"percentile":0.36451}],"last30":[{"date":"2026-09-20T00:00:00.000Z","score":0.00435,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.00435,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.00435,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.00435,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.00435,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.00435,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.00435,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.00435,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.00435,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.00435,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.00435,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.00435,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.00435,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.00435,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.00435,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.00435,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.00435,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.00435,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.00435,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.00435,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.00435,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.00435,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.00435,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.00435,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.00435,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.00435,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.00435,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.00435,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.00435,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.00435,"percentile":null},{"date":"2026-10-20T00:00:00.000Z","score":0.00435,"percentile":0.36451}]},"kev":{"state":"not-listed","entries":[],"listedCount":0,"totalCatalogs":3,"catalogs":[{"source":"cisa","label":"CISA","listed":false,"entry":null},{"source":"enisa","label":"ENISA","listed":false,"entry":null},{"source":"circl","label":"CIRCL","listed":false,"entry":null}]},"ransomware":{"state":"none-recorded","sources":[]},"exploits":[{"id":"REF_1DF7474D9B94AED8","name":"Exploit Reference (bugzilla.redhat.com)","source":"reference","url":"https://bugzilla.redhat.com/show_bug.cgi?id=844442","maturity":"unknown","reliabilityScore":0.2,"verified":false,"type":null,"platforms":[],"requiresAuth":null,"exploitdb":null,"metasploit":null}],"exploitCount":1,"weaknesses":[{"id":"CWE-59","name":"Improper Link Resolution Before File Access ('Link Following')","description":"The product attempts to access a file based on the filename, but it does not properly prevent that filename from identifying a link or shortcut that resolves to an unintended resource.","type":"weakness","status":"Draft","abstraction":"Base","likelihoodOfExploit":"Medium","url":"https://cwe.mitre.org/data/definitions/59.html"}],"affected":[{"vendor":"redhat","product":"enterprise_linux","name":"enterprise linux","label":"enterprise_linux","ecosystem":null,"cpePart":"o","purl":null,"purlType":null,"versions":[{"text":"5","noFixRecorded":false,"fixedIn":null}],"versionsText":"5","eol":{"isEol":true,"eolDate":"2017-03-31T00:00:00.000Z","matchMethod":"cpe","cycle":{"name":"5","label":"5 (ELS)","eolFrom":"2017-03-31T00:00:00.000Z","isLts":true,"isMaintained":false,"latestVersion":"5.11"},"product":{"name":"rhel","label":"Red Hat Enterprise Linux","category":"os"}},"hubHref":"/vendor/redhat/enterprise_linux"},{"vendor":"redhat","product":"sudo","name":"sudo","label":"sudo","ecosystem":"Red Hat","cpePart":null,"purl":"pkg:rpm/redhat/sudo","purlType":"rpm","versions":[{"text":"< 0:1.7.2p1-14.el5_8.2","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 0:1.7.2p1-14.el5_8.2","eol":null,"hubHref":null},{"vendor":"redhat","product":"sudo-debuginfo","name":"sudo-debuginfo","label":"sudo-debuginfo","ecosystem":"Red Hat","cpePart":null,"purl":"pkg:rpm/redhat/sudo-debuginfo","purlType":"rpm","versions":[{"text":"< 0:1.7.2p1-14.el5_8.2","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 0:1.7.2p1-14.el5_8.2","eol":null,"hubHref":null},{"vendor":"todd_miller","product":"sudo","name":"sudo","label":"sudo","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"1.7.2","noFixRecorded":false,"fixedIn":null}],"versionsText":"1.7.2","eol":null,"hubHref":"/vendor/todd_miller/sudo"}],"affectedCount":4,"eol":{"hasEol":true,"count":1},"references":[{"url":"http://www.oracle.com/technetwork/topics/security/ovmbulletinjul2016-3090546.html","label":"www.oracle.com/technetwork/topics/security/ovmbulletinjul2016-3090546.html","hostname":"www.oracle.com","tags":["X Refsource CONFIRM"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=844442","label":"bugzilla.redhat.com/show_bug.cgi?id=844442","hostname":"bugzilla.redhat.com","tags":["X Refsource CONFIRM","Exploit","REPORT"]},{"url":"http://www.securityfocus.com/bid/54868","label":"www.securityfocus.com/bid/54868","hostname":"www.securityfocus.com","tags":["VDB Entry","X Refsource BID"]},{"url":"https://access.redhat.com/errata/RHSA-2012:1149","label":"access.redhat.com/errata/RHSA-2012:1149","hostname":"access.redhat.com","tags":["Advisory"]},{"url":"https://access.redhat.com/security/updates/classification/#moderate","label":"access.redhat.com/security/updates/classification/","hostname":"access.redhat.com","tags":["ARTICLE"]},{"url":"https://rhn.redhat.com/errata/RHSA-2012-0309.html","label":"rhn.redhat.com/errata/RHSA-2012-0309.html","hostname":"rhn.redhat.com","tags":["ARTICLE"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=842759","label":"bugzilla.redhat.com/show_bug.cgi?id=842759","hostname":"bugzilla.redhat.com","tags":["REPORT"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=844420","label":"bugzilla.redhat.com/show_bug.cgi?id=844420","hostname":"bugzilla.redhat.com","tags":["REPORT"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=844978","label":"bugzilla.redhat.com/show_bug.cgi?id=844978","hostname":"bugzilla.redhat.com","tags":["REPORT"]},{"url":"https://security.access.redhat.com/data/csaf/v2/advisories/2012/rhsa-2012_1149.json","label":"security.access.redhat.com/data/csaf/v2/advisories/2012/rhsa-2012_1149.json","hostname":"security.access.redhat.com","tags":["Advisory"]},{"url":"https://access.redhat.com/security/cve/CVE-2012-3440","label":"access.redhat.com/security/cve/CVE-2012-3440","hostname":"access.redhat.com","tags":["REPORT"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2012-3440","label":"www.cve.org/CVERecord?id=CVE-2012-3440","hostname":"www.cve.org","tags":["Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2012-3440","label":"nvd.nist.gov/vuln/detail/CVE-2012-3440","hostname":"nvd.nist.gov","tags":["Advisory"]}],"lineage":{"upstream":[],"downstream":[],"duplicates":[],"related":[]},"timeline":[{"kind":"published","date":"2012-08-08T10:00:00.000Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2024-08-06T20:05:12.637Z","label":"Last modified","detail":"Vulnerability information updated.","source":null}],"risk":{"score":32,"level":"medium","profile":"Default","thresholds":{"critical":75,"high":50,"medium":25,"low":10}},"meta":{"dataAsOf":"2026-10-20T21:53:05.091Z","stale":false,"partial":false}}