CVE-2022-25218

The use of the RSA algorithm without OAEP, or any other padding scheme, in telnetd_startup, allows an unauthenticated attacker on the local area network to achieve a significant degree of control over the "plaintext" to which an arbitrary blob of ciphertext will be decrypted by OpenSSL's RSA_public_decrypt() function. This weakness allows the attacker to manipulate the various iterations of the telnetd startup state machine and eventually obtain a root shell on the device, by means of an exchange of crafted UDP packets. In all versions but K2 22.5.9.163 and K3C 32.1.15.93 a successful attack also requires the exploitation of a null-byte interaction error (CVE-2022-25219).

Link	Resource
https://www.tenable.com/security/research/tra-2022-01	Exploit Third Party Advisory

Configuration 1

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Published : 2022-03-10 05:47

Updated : 2022-03-17 07:21

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NVD link : CVE-2022-25218

Mitre link : CVE-2022-25218

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NVD-CWE-noinfo