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CVE
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CVE-2019-19519Date: (C)2019-12-05   (M)2023-12-22


In OpenBSD 6.6, local users can use the su -L option to achieve any login class (often excluding root) because there is a logic error in the main function in su/su.c.

CVSS Score and Metrics +CVSS Score and Metrics -

CVSS V3 Severity:CVSS V2 Severity:
CVSS Score : 7.8CVSS Score : 4.6
Exploit Score: 1.8Exploit Score: 3.9
Impact Score: 5.9Impact Score: 6.4
 
CVSS V3 Metrics:CVSS V2 Metrics:
Attack Vector: LOCALAccess Vector: LOCAL
Attack Complexity: LOWAccess Complexity: LOW
Privileges Required: LOWAuthentication: NONE
User Interaction: NONEConfidentiality: PARTIAL
Scope: UNCHANGEDIntegrity: PARTIAL
Confidentiality: HIGHAvailability: PARTIAL
Integrity: HIGH 
Availability: HIGH 
  
Reference:
https://seclists.org/bugtraq/2019/Dec/8
http://seclists.org/fulldisclosure/2019/Dec/14
http://www.openwall.com/lists/oss-security/2019/12/04/5
http://packetstormsecurity.com/files/155572/Qualys-Security-Advisory-OpenBSD-Authentication-Bypass-Privilege-Escalation.html
https://github.com/openbsd/src/blob/2dfc98f42e117c7605b52b5020b630d98601dc22/usr.bin/su/su.c#L210-L211
https://www.openbsd.org/errata66.html
https://www.openwall.com/lists/oss-security/2019/12/04/5

CWE    1
CWE-20

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