CVE-2019-15900

An issue was discovered in slicer69 doas before 6.2 on certain platforms other than OpenBSD. On platforms without strtonum(3), sscanf was used without checking for error cases. Instead, the uninitialized variable errstr was checked and in some cases returned success even if sscanf failed. The result was that, instead of reporting that the supplied username or group name did not exist, it would execute the command as root.

CVSS v3.0 9.8 CRITICAL
CVSS v2.0 10.0 HIGH

9.8^/10

CVSS v3.0 : CRITICAL

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

10.0^/10

CVSS v2.0 : HIGH

V2 Legend

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

Exploitability : 10.0 / Impact : 10.0

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact COMPLETE

Integrity Impact COMPLETE

Availability Impact COMPLETE

References

Link	Resource
https://github.com/slicer69/doas/compare/6.1p1...6.2	Release Notes Third Party Advisory
https://github.com/slicer69/doas/commit/2f83222829448e5bc4c9391d607ec265a1e06531	Patch Third Party Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:doas_project:doas:*:*:*:*:*:*:*:*

Information

Published : 2019-10-18 09:15

Updated : 2021-07-21 04:39

NVD link : CVE-2019-15900

Mitre link : CVE-2019-15900

JSON object : View

CWE

CWE-908

Use of Uninitialized Resource

CWE-863

Incorrect Authorization

CWE-754

Improper Check for Unusual or Exceptional Conditions

Products Affected

doas_project

doas

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9.8 /10