SERVER-WEBAPP -- Snort has detected traffic exploiting vulnerabilities in web based applications on servers.
SERVER-WEBAPP Tendar Router AC11 stack buffer overflow attempt
This rule looks for traffic that exploits the vulnerability outlined in CVE-2021-31755.
This rule alerts on initial exploit traffic.
No public information
No known false positives
Cisco Talos Intelligence Group
No rule groups
Buffer Overflow
Buffer Overflows occur when a memory location is filled past its expected boundaries. Computer attackers target systems without proper terminating conditions on buffers, which then write the additional information in other locations in memory, overwriting what is there. This could corrupt the data, making the system behave erratically or crash. The new information could include malicious executable code, which might be executed.
CVE-2021-31755 |
Loading description
|
Tactic: Execution
Technique: Execution through API
For reference, see the MITRE ATT&CK vulnerability types here: https://attack.mitre.org
©2025 Cisco and/or its affiliates. Snort, the Snort and Pig logo are registered trademarks of Cisco. All rights reserved.
