Unrestricted Logging Filename Lead to RCE in lirantal/daloradius

Valid

Reported on

Jan 3rd 2023


Description

This vulnerability occur because there is no filename restriction for saving logging file. In this case attacker can set the filename to existing php file and append php code on it by manipulating the logged input.

Proof of Concept

  1. Log in using operator account, in this case i try to login using operator1 user which is account that i created with ACL Settings only rep_online enabled
  2. Go to config and click on logging settings. Modify filename to any php file that accessible , e.g update.php then enabled Logging of Queries Here i use update.php
  3. Go to rep_online feature and fill the username with php code, e.g phpinfo()
  4. Go to update.php and you will see that phpinfo() successfully injected

Impact

Attacker can gain RCE on server and then takeover the server (read, modify, add, and delete file)

References

We are processing your report and will contact the lirantal/daloradius team within 24 hours. a year ago
We have contacted a member of the lirantal/daloradius team and are waiting to hear back a year ago
lirantal/daloradius maintainer has acknowledged this report a year ago
Filippo modified the Severity from High (8.8) to High (7.2) a year ago
Filippo gave praise a year ago
The researcher's credibility has slightly increased as a result of the maintainer's thanks: +1
The researcher has received a minor penalty to their credibility for miscalculating the severity: -1
Filippo validated this vulnerability a year ago
kos0ng has been awarded the disclosure bounty
The fix bounty is now up for grabs
The researcher's credibility has increased: +7
Filippo marked this as fixed in master-branch with commit 2013c2 a year ago
Filippo has been awarded the fix bounty
This vulnerability has now been published a year ago
config-logging.php#L52 has been validated
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