CVE-2022-25218

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Summary

CVECVE-2022-25218
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2022-03-10 17:47:00 UTC
Updated2023-08-08 14:22:00 UTC
DescriptionThe 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).

Risk And Classification

Problem Types: CWE-327

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Hardware Phicomm K2 - All All All
Hardware Phicomm K2g - All All All
Operating System Phicomm K2g Firmware All All All All
Hardware Phicomm K2p - All All All
Operating System Phicomm K2p Firmware All All All All
Operating System Phicomm K2 Firmware All All All All
Hardware Phicomm K3 - All All All
Hardware Phicomm K3c - All All All
Operating System Phicomm K3c Firmware All All All All
Operating System Phicomm K3 Firmware All All All All

References

ReferenceSourceLinkTags
Unpatchable Vulnerabilities in Phicomm Router Firmware - Research Advisory | Tenable® MISC www.tenable.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis
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