Vulnerability · Published Mar 7, 2022 · Assigned by tenable
CVE-2022-25219
High 8.4
In plain English
A high-severity security flaw in Phicomm Routers. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.8% (higher than 56% of all known vulnerabilities).
Official description
A null byte interaction error has been discovered in the code that the telnetd_startup daemon uses to construct a pair of ephemeral passwords that allow a user to spawn a telnet service on the router, and to ensure that the telnet service persists upon reboot. By means of a crafted exchange of UDP packets, an unauthenticated attacker on the local network can leverage this null byte interaction error in such a way as to make those ephemeral passwords predictable (with 1-in-94 odds). Since the attacker must manipulate data processed by the OpenSSL function RSA_public_decrypt(), successful exploitation of this vulnerability depends on the use of an unpadded RSA cipher (CVE-2022-25218).
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| n/a | Phicomm Routers | K3 >= 21.5.37.246, K3C >= 32.1.22.113, K2P >= 20.4.1.7, K2 A7 >= 22.6.506.28, K2G A1 >= 22.6.3.20 |
References
- https://www.tenable.com/security/research/tra-2022-01 x_refsource_MISC