SB2020122904 - OS command injection in Dolibarr

Description

This security bulletin contains information about 1 vulnerability.

1) OS Command Injection (CVE-ID: CVE-2020-35136)

CWE-ID: CWE-78 - Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green

The vulnerability allows a remote user to execute arbitrary shell commands on the target system.

The vulnerability exists due to improper input validation within the backup functionality. A remote privileged user can pass specially crafted filename via the zipfilename_template parameter to admin/tools/dolibarr_export.php and execute arbitrary OS commands on the target system.

Remediation

Install update from vendor's website.

References

• http://bilishim.com/2020/12/18/zero-hunting-2.html
• https://github.com/Dolibarr/dolibarr/commit/4fcd3fe49332baab0e424225ad10b76b47ebcbac
• https://github.com/Dolibarr/dolibarr/releases
• https://sourceforge.net/projects/dolibarr/