CVE-2016-7076

sudo before version 1.8.18p1 is vulnerable to a bypass in the sudo noexec restriction if application run via sudo executed wordexp() C library function with a user supplied argument. A local user permitted to run such application via sudo with noexec restriction could possibly use this flaw to execute arbitrary commands with elevated privileges.

CVSS v3 7.8 HIGH
CVSS v2.0 7.2 HIGH

7.8^/10

CVSS v3 : HIGH

Vector : AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Exploitability : 1.8 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

7.2^/10

CVSS v2.0 : HIGH

Vector : AV:L/AC:L/Au:N/C:C/I:C/A:C

Exploitability : 3.9 / Impact : 10.0

Access Vector LOCAL

Access Complexity LOW

Authentication NONE

Confidentiality Impact COMPLETE

Integrity Impact COMPLETE

Availability Impact COMPLETE

References

Link	Resource
http://rhn.redhat.com/errata/RHSA-2016-2872.html	Third Party Advisory
http://www.securityfocus.com/bid/95778	Third Party Advisory VDB Entry
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2016-7076	Issue Tracking
https://security.netapp.com/advisory/ntap-20181127-0002/
https://usn.ubuntu.com/3968-1/
https://usn.ubuntu.com/3968-3/
https://www.sudo.ws/alerts/noexec_wordexp.html	Third Party Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:sudo_project:sudo:*:*:*:*:*:*:*:*

History

No history.

Information

Published : 2018-05-29 13:29

Updated : 2023-12-10 12:30

NVD link : CVE-2016-7076

Mitre link : CVE-2016-7076

CVE.ORG link : CVE-2016-7076

JSON object : View

Products Affected

sudo_project

sudo

CWE

CWE-77

Improper Neutralization of Special Elements used in a Command ('Command Injection')

CWE-184

Incomplete List of Disallowed Inputs

{"id": "CVE-2016-7076", "metrics": {"cvssMetricV2": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"version": "2.0", "baseScore": 7.2, "accessVector": "LOCAL", "vectorString": "AV:L/AC:L/Au:N/C:C/I:C/A:C", "authentication": "NONE", "integrityImpact": "COMPLETE", "accessComplexity": "LOW", "availabilityImpact": "COMPLETE", "confidentialityImpact": "COMPLETE"}, "acInsufInfo": false, "impactScore": 10.0, "baseSeverity": "HIGH", "obtainAllPrivilege": false, "exploitabilityScore": 3.9, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}], "cvssMetricV30": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.0", "baseScore": 7.8, "attackVector": "LOCAL", "baseSeverity": "HIGH", "vectorString": "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 1.8}, {"type": "Secondary", "source": "secalert@redhat.com", "cvssData": {"scope": "UNCHANGED", "version": "3.0", "baseScore": 6.4, "attackVector": "LOCAL", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.0/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "HIGH", "availabilityImpact": "HIGH", "privilegesRequired": "HIGH", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 0.5}]}, "published": "2018-05-29T13:29:00.210", "references": [{"url": "http://rhn.redhat.com/errata/RHSA-2016-2872.html", "tags": ["Third Party Advisory"], "source": "secalert@redhat.com"}, {"url": "http://www.securityfocus.com/bid/95778", "tags": ["Third Party Advisory", "VDB Entry"], "source": "secalert@redhat.com"}, {"url": "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2016-7076", "tags": ["Issue Tracking"], "source": "secalert@redhat.com"}, {"url": "https://security.netapp.com/advisory/ntap-20181127-0002/", "source": "secalert@redhat.com"}, {"url": "https://usn.ubuntu.com/3968-1/", "source": "secalert@redhat.com"}, {"url": "https://usn.ubuntu.com/3968-3/", "source": "secalert@redhat.com"}, {"url": "https://www.sudo.ws/alerts/noexec_wordexp.html", "tags": ["Third Party Advisory"], "source": "secalert@redhat.com"}], "vulnStatus": "Modified", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-77"}]}, {"type": "Secondary", "source": "secalert@redhat.com", "description": [{"lang": "en", "value": "CWE-184"}]}], "descriptions": [{"lang": "en", "value": "sudo before version 1.8.18p1 is vulnerable to a bypass in the sudo noexec restriction if application run via sudo executed wordexp() C library function with a user supplied argument. A local user permitted to run such application via sudo with noexec restriction could possibly use this flaw to execute arbitrary commands with elevated privileges."}, {"lang": "es", "value": "sudo en versiones anteriores a la 1.8.18p1 es vulnerable a una omisi\u00f3n en la restricci\u00f3n noexec de sudo si la aplicaci\u00f3n que se ejecuta mediante sudo ejecuta la funci\u00f3n de la biblioteca de C wordexp() con un argumento proporcionado por el usuario. Un usuario local que pueda ejecutar tal aplicaci\u00f3n mediante sudo con la restricci\u00f3n noexec podr\u00eda emplear este error para ejecutar comandos arbitrarios con privilegios elevados."}], "lastModified": "2023-11-07T02:34:14.773", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:sudo_project:sudo:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "BF5B72BD-BF72-4F3B-86E4-8C212AEC9F8F", "versionEndIncluding": "1.8.18", "versionStartIncluding": "1.6.8"}], "operator": "OR"}]}], "sourceIdentifier": "secalert@redhat.com"}