SB2020012834 - Path traversal in ntp
Published: January 28, 2020 Updated: August 8, 2020
Security Bulletin ID
SB2020012834
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 security vulnerability.
1) Path traversal (CVE-ID: CVE-2015-7851)
The vulnerability allows a remote attacker to perform directory traversal attacks.
The vulnerability exists due to input validation error when processing directory traversal sequences in the save_config function in ntpd in ntp_control.c in NTP before 4.2.8p4, when used on systems that do not use '' or '/' characters for directory separation such as OpenVMS,. A remote authenticated attacker can send a specially crafted HTTP request and remote authenticated users to overwrite arbitrary files.
Remediation
Install update from vendor's website.