Directory traversal in PHP - #VU9406
Published: November 23, 2017
Vulnerability identifier: #VU9406
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: N/A
CWE-ID: CWE-22
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: PHP Group
Affected software:
PHP
PHP
Detailed vulnerability description
The vulnerability allows a remote attacker to cause DoS condition on the target system.
The weakness exists due to directory traversal if the webserver started with a router script with relative path and in a shutdown function there is a chdir to a different directory than one where the router script is. A remote attacker can cause the webserver to crash.
The weakness exists due to directory traversal if the webserver started with a router script with relative path and in a shutdown function there is a chdir to a different directory than one where the router script is. A remote attacker can cause the webserver to crash.
Remediation
Update to version 7.0.26.