Websec Cybersecurity Blog
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Blog October 3, 2023
A Comparison Between the Real User ID and the Effective User ID is not Enough to Prevent Privilege Escalation
In Unix-like systems, processes have a real and effective user ID determining their access permissions. While usually identical, they can differ in situations like when the setuid bit is activated in executables.
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Blog January 8, 2015
Backdoors in Zhone GPON 2520 and Alcatel Lucent I240Q
While examining the "dropbear" binary for the Zhone GPON 2520 and Alcatel Lucent I240Q, we found that both routers have backdoors that allow users with SSH access to connect to these devices with maximum privileges.