RCE in Fiberhome Aan5506-04-G2g Firmware
CVE-2021-42912
FiberHome ONU GPON AN5506-04-F RP2617 is affected by an OS command injection vulnerability. This vulnerability allows the attacker, once logged in, to send commands to the operating system as the root user via the ping diagnostic tool, bypassing the IP address field, and concatenating OS commands with a semicolon.
Vulnerability class: Command Injection (OS Command Injection)
EPSS: 0.100 (95.1th 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
- Fiberhome Aan5506-04-g2g_firmware — versions rp2560
- Fiberhome An5506-01-a
- Fiberhome An5506-01-a_firmware — versions rp0509
- Fiberhome An5506-01-b
- Fiberhome An5506-01-b_firmware — versions rp2610
- Fiberhome An5506-02-b
- Fiberhome An5506-02-b_firmware — versions rp2520, rp2521, rp2603
- Fiberhome An5506-04-b
- Fiberhome An5506-04-b_firmware — versions rp2510
- Fiberhome An5506-04-f
Weakness classification (CWE)
Public proof-of-concept exploits
References
- af854a3a-2127-422b-91ae-364da2661108 (x_refsource_MISC, Broken Link)
- af854a3a-2127-422b-91ae-364da2661108 (x_refsource_MISC, Not Applicable)
- af854a3a-2127-422b-91ae-364da2661108 (x_refsource_MISC)
- cve@mitre.org
Frequently asked questions
- What is CVE-2021-42912?
- CVE-2021-42912 is a high-severity vulnerability in Fiberhome Aan5506-04-G2g Firmware, classified under OS Command Injection. CVSS score: 8.8/10. Published 2021-12-16.
- How severe is CVE-2021-42912?
- High severity. CVSS v3 base score is 8.8 out of 10.
- Is CVE-2021-42912 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.