Privilege escalation in F5OS-A BIOS firmware
| Risk | Low |
| Patch available | YES |
| Number of vulnerabilities | 1 |
| CVE-ID | CVE-2021-33060 |
| CWE-ID | CWE-787 |
| Exploitation vector | Local |
| Public exploit | N/A |
| Vulnerable software Subscribe |
F5OS Operating systems & Components / Operating system |
| Vendor | F5 Networks |
Security Bulletin
This security bulletin contains one low risk vulnerability.
1) Out-of-bounds write
EUVDB-ID: #VU66499
Risk: Low
CVSSv3.1: 6.8 [CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2021-33060
CWE-ID:
CWE-787 - Out-of-bounds write
Exploit availability: No
DescriptionThe vulnerability allows a local user to compromise vulnerable system.
The vulnerability exists due to a boundary error in the BIOS firmware. A local user can trigger out-of-bounds write and execute arbitrary code on the target system with elevated privileges.
MitigationInstall update from vendor's website.
Vulnerable software versionsF5OS: 1.1.1 - 1.2.0
External linkshttp://support.f5.com/csp/article/K12055286
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.
