log4sh contains a flaw that may allow a malicious local user to overwrite or create arbitrary files on the system. The issue is due to the script creating temporary files insecurely. It is possible for a user to use a symlink style attack to manipulate arbitrary files, resulting in a loss of integrity.
Classification
Location:
Local Access Required
Attack Type:
Race Condition
Impact:
Loss of Integrity
Exploit:
Exploit Available
Disclosure:
OSVDB Verified
Solution
Upgrade to version 1.2.6 or higher, as it has been reported to fix this vulnerability. An upgrade is required as there are no known workarounds.