Description
Heap overflow with full parsing of HTTP respose in Rostelecom CS-C2SHW 5.0.082.1. AgentUpdater service has a self-written HTTP parser and builder. HTTP parser has a heap buffer overflow (OOB write). In default configuration camera parses responses only from HTTPS URLs from config file, so vulnerable code is unreachable and one more bug required to reach it.
References (1)
Core 1
Core References
Exploit, Third Party Advisory x_refsource_misc
https://dil4rd.medium.com/groundhog-day-in-iot-valley-or-5-cves-in-1-camera-7dc1d2864707
Scores
CVSS v3
9.8
EPSS
0.0126
EPSS Percentile
66.2%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Details
CWE
CWE-787
Status
published
Products (1)
company/cs-c2shw_firmware
5.0.082.1
Published
Jan 26, 2021
Tracked Since
Feb 18, 2026