CVE-2022-25219
Severity CVSS v4.0:
Pending analysis
Type:
Unavailable / Other
Publication date:
10/03/2022
Last modified:
08/08/2023
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).
Impact
Base Score 3.x
8.40
Severity 3.x
HIGH
Base Score 2.0
6.90
Severity 2.0
MEDIUM
Vulnerable products and versions
| CPE | From | Up to |
|---|---|---|
| cpe:2.3:o:phicomm:k2_firmware:*:*:*:*:*:*:*:* | 22.5.9.163 (including) | |
| cpe:2.3:h:phicomm:k2:-:*:*:*:*:*:*:* | ||
| cpe:2.3:o:phicomm:k3_firmware:*:*:*:*:*:*:*:* | 21.5.37.246 (including) | |
| cpe:2.3:h:phicomm:k3:-:*:*:*:*:*:*:* | ||
| cpe:2.3:o:phicomm:k3c_firmware:*:*:*:*:*:*:*:* | 32.1.15.93 (including) | |
| cpe:2.3:h:phicomm:k3c:-:*:*:*:*:*:*:* | ||
| cpe:2.3:o:phicomm:k2g_firmware:*:*:*:*:*:*:*:* | 22.6.3.20 (including) | |
| cpe:2.3:h:phicomm:k2g:-:*:*:*:*:*:*:* | ||
| cpe:2.3:o:phicomm:k2p_firmware:*:*:*:*:*:*:*:* | 20.4.1.7 (including) | |
| cpe:2.3:h:phicomm:k2p:-:*:*:*:*:*:*:* |
To consult the complete list of CPE names with products and versions, see this page