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

Configuration 1 (hide)

AND
cpe:2.3:o:phicomm:k2_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:phicomm:k2:-:*:*:*:*:*:*:*

Configuration 2 (hide)

AND
cpe:2.3:o:phicomm:k3_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:phicomm:k3:-:*:*:*:*:*:*:*

Configuration 3 (hide)

AND
cpe:2.3:o:phicomm:k3c_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:phicomm:k3c:-:*:*:*:*:*:*:*

Configuration 4 (hide)

AND
cpe:2.3:o:phicomm:k2g_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:phicomm:k2g:-:*:*:*:*:*:*:*

Configuration 5 (hide)

AND
cpe:2.3:o:phicomm:k2p_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:phicomm:k2p:-:*:*:*:*:*:*:*

History

21 Nov 2024, 06:51

Type Values Removed Values Added
References () https://www.tenable.com/security/research/tra-2022-01 - Exploit, Third Party Advisory () https://www.tenable.com/security/research/tra-2022-01 - Exploit, Third Party Advisory

08 Aug 2023, 14:22

Type Values Removed Values Added
CWE NVD-CWE-noinfo CWE-327

Information

Published : 2022-03-10 17:47

Updated : 2024-11-21 06:51


NVD link : CVE-2022-25218

Mitre link : CVE-2022-25218

CVE.ORG link : CVE-2022-25218


JSON object : View

Products Affected

phicomm

  • k2g
  • k3_firmware
  • k2_firmware
  • k2g_firmware
  • k2
  • k3c_firmware
  • k2p
  • k3
  • k3c
  • k2p_firmware
CWE
CWE-327

Use of a Broken or Risky Cryptographic Algorithm