Impact

The tmp directory, which is accessible by /lam/tmp/, allows interpretation of .php (and .php5/.php4/.phpt/etc) files. An attacker capable of writing files under
www-data privileges can write a web-shell into this directory, and gain a Code Execution on the host.

Patches

The issue is fixed in version 8.0.

Workarounds

Disallow executing PHP scripts in (/var/lib/ldap-account-manager/)tmp directory.

For more information

If you have any questions or comments about this advisory:

• Open an issue in https://github.com/LDAPAccountManager/lam/issues
• Email us on lam-public mailinglist

Credits

• Arseniy Sharoglazov