SB2019120534 - Permissions, Privileges, and Access Controls in putty (Alpine package)
Published: December 5, 2019
Security Bulletin ID
SB2019120534
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Data manipulation
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Permissions, Privileges, and Access Controls (CVE-ID: CVE-2019-17068)
CWE-ID: CWE-264 - Permissions, Privileges, and Access Controls
CVSSv4: CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:A/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:U/U:Green
The vulnerability allows a remote attacker to bypass certain security restrictions.
The vulnerability exists due to an error with "bracketed paste mode" protection implementation. A remote attacker can affect current user's session with a malicious clipboard content and execute arbitrary commands on a remote system with privileges of the current user.
Remediation
Install update from vendor's website.
References
- https://git.alpinelinux.org/aports/commit/?id=25b4361bdc9f4c39a1e66d492117f90e6701832b
- https://git.alpinelinux.org/aports/commit/?id=8d7092356e7b101ff1c39be6009da6297e5aa418
- https://git.alpinelinux.org/aports/commit/?id=cee3cd28a75386eb0461f2355237396c014c6a8e
- https://git.alpinelinux.org/aports/commit/?id=d21e62f341aa3be70aa5dc967aeebdf6a54e04d2