#VU75912 Weak password requirements in fwupd - CVE-2022-3287

Vulnerability identifier: #VU75912

Vulnerability risk: Low

CVSSv4.0: 5.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2022-3287

CWE-ID: CWE-521

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
fwupd
Other software / Other software solutions

Vendor: fwupd.org

Description

The vulnerability allows a local user to escalate privileges within the application.

The vulnerability exists due to the way the redfish plugin handles passwords. When creating an OPERATOR user account on the BMC, the redfish plugin saved the auto-generated password to /etc/fwupd/redfish.conf without proper restriction. A local user can read the configuration file and gain operator privileges.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

fwupd: 1.8.0 - 1.8.4

---

External links
https://github.com/fwupd/fwupd/commit/ea676855f2119e36d433fbd2ed604039f53b2091

---

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.