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Advisories

PLANET GS-4210-16P2S Null Pointer Dereference DoS via dispatcher.cgi web_poe_alive_rmtip_post

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severity
medium
date
Affecting

  • PLANET GS-4210-16P2S < 3.441b260626

CWE
  • CWE-476 NULL Pointer Dereference
CVSS
6.9
CVSS V4 Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
Credit
Jincheng Wang (@winmt), Professor Le Yu of Nanjing University of Posts and Telecommunications, Professor Xiapu Luo of The Hong Kong Polytechnic University
Description
PLANET GS-4210-16P2S firmware before 3.441b260626 contains an authenticated null pointer dereference vulnerability in /cgi-bin/dispatcher.cgi. The web_poe_alive_rmtip_post handler dereferences the rmtIP parameter without verifying its presence. A remote authenticated attacker can send a crafted request omitting the rmtIP parameter to cause the CGI process to dereference a null pointer and crash, resulting in denial of service of the web management interface.

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