RCE in Chinamobile An Lianbao Wf-1
CVE-2021-33964
China Mobile An Lianbao WF-1 V1.0.1 router provides a web interface /api/ZRRuleFilter/set_firewall_level which receives parameters by POST request, and the parameter firewall_level has a command injection vulnerability. An attacker can use the vulnerability to execute remote commands.
Vulnerability class: Command Injection (OS Command Injection)
EPSS: 0.029 (85.4th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Chinamobile An_lianbao_wf-1
- Chinamobile An_lianbao_wf-1_firmware — versions 1.0.1
- N/a — versions n/a
Weakness classification (CWE)
Public proof-of-concept exploits
References
- cve@mitre.org (x_refsource_MISC, Broken Link)
- cve@mitre.org (Product, x_refsource_MISC, Vendor Advisory)
- cve@mitre.org (VDB Entry, Third Party Advisory, x_refsource_MISC)
- cve@mitre.org (x_refsource_MISC, Broken Link)
Frequently asked questions
- What is CVE-2021-33964?
- CVE-2021-33964 is a high-severity vulnerability in Chinamobile An Lianbao Wf-1, classified under Command Injection. CVSS score: 8.8/10. Published 2022-01-18.
- How severe is CVE-2021-33964?
- High severity. CVSS v3 base score is 8.8 out of 10.
- Is CVE-2021-33964 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.