Home/CVE/Samba version 4.0.0 up to 4.5.2 is vulnerable to privilege elevation due to incorrect handling of the PAC (Privilege Att
CVE

CVE-2016-2126

Samba version 4.0.0 up to 4.5.2 is vulnerable to privilege elevation due to incorrect handling of the PAC (Privilege Att

Samba version 4.0.0 up to 4.5.2 is vulnerable to privilege elevation due to incorrect handling of the PAC (Privilege Attribute Certificate) checksum. A remote, authenticated, attacker can cause the winbindd process to crash using a legitimate Kerberos ticket. A local service with access to the winbindd privileged pipe can cause winbindd to cache elevated access permissions.

MEDIUM · CVSS 6.5 EPSS 0.04506
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  • No active-exploitation, high-EPSS, or public-exploit signals - routine patching cadence
Sigma rules0 YARA rules0
▤

Affected Products & Versions

3
samba>= 4.0.0 and < 4.3.13
samba>= 4.4.0 and < 4.4.8
samba>= 4.5.0 and < 4.5.3
▣

Scoring & Timeline

6.5
MEDIUM · CVSS v3.1 · secalert@redhat.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD11 May 2017 · 02:29 PM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
⚑

Vendor Advisories

12
suse-csafopenSUSE-SU-2024:11365-1
rhsaRHSA-2017:1265Moderate
suse-csafSUSE-SU-2016:3298-1
suse-csafSUSE-SU-2016:3299-1
suse-csafSUSE-SU-2016:3300-1
🔗

References & Sources

8
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
http://rhn.redhat.com/errata/RHSA-2017-0494.htmlThird Party Advisory
http://rhn.redhat.com/errata/RHSA-2017-0495.htmlThird Party Advisory
http://rhn.redhat.com/errata/RHSA-2017-0662.htmlThird Party Advisory
http://rhn.redhat.com/errata/RHSA-2017-0744.htmlThird Party Advisory
http://www.securityfocus.com/bid/94994Third Party AdvisoryVDB Entry
http://www.securitytracker.com/id/1037495Third Party AdvisoryVDB Entry
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