Stack-based Buffer Overflow Vulnerability in Linksys WRT120N Wireless Router
CVE-2014-125122
Key Information:
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What is CVE-2014-125122?
The Linksys WRT120N wireless router is vulnerable to a stack-based buffer overflow through its tmUnblock.cgi endpoint. An attacker can exploit this vulnerability by sending a specially crafted HTTP POST request with an excessively long TM_Block_URL parameter. This allows the attacker to overwrite memory, which could lead to unauthorized access by resetting the administrator password to a blank value, thus bypassing authentication on the router's management interface.
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Affected Version(s)
WRT120N 1.0.07
Exploit Proof of Concept (PoC)
PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.
References
EPSS Score
31% chance of being exploited in the next 30 days.
CVSS V4
Timeline
- 🟡
Public PoC available
- 👾
Exploit known to exist
Vulnerability published
Vulnerability Reserved