Description
teler-waf is a Go HTTP middleware that provides teler IDS functionality to protect against web-based attacks. In teler-waf prior to version v0.1.1 is vulnerable to bypassing common web attack rules when a specific HTML entities payload is used. This vulnerability allows an attacker to execute arbitrary JavaScript code on the victim's browser and compromise the security of the web application. The vulnerability exists due to teler-waf failure to properly sanitize and filter HTML entities in user input.
Impact
An attacker can exploit this vulnerability to bypass common web attack threat rules in teler-waf and launch cross-site scripting (XSS) attacks. The attacker can execute arbitrary JavaScript code on the victim's browser and steal sensitive information, such as login credentials and session tokens, or take control of the victim's browser and perform malicious actions.
Patches
Version v0.1.1 includes a patch for this vulnerability.
Workarounds
We advised updating their installations to version v0.1.1 and frontwards immediately.
Credits
This vulnerability was reported by Aidil Arief (@aidilarf), a security researcher who discovered and reported the vulnerability to teler-waf developers. Their efforts have contributed to the improvement of teler-waf development.
References
Description
teler-waf is a Go HTTP middleware that provides teler IDS functionality to protect against web-based attacks. In teler-waf prior to version v0.1.1 is vulnerable to bypassing common web attack rules when a specific HTML entities payload is used. This vulnerability allows an attacker to execute arbitrary JavaScript code on the victim's browser and compromise the security of the web application. The vulnerability exists due to teler-waf failure to properly sanitize and filter HTML entities in user input.
Impact
An attacker can exploit this vulnerability to bypass common web attack threat rules in teler-waf and launch cross-site scripting (XSS) attacks. The attacker can execute arbitrary JavaScript code on the victim's browser and steal sensitive information, such as login credentials and session tokens, or take control of the victim's browser and perform malicious actions.
Patches
Version v0.1.1 includes a patch for this vulnerability.
Workarounds
We advised updating their installations to version
v0.1.1and frontwards immediately.Credits
This vulnerability was reported by Aidil Arief (@aidilarf), a security researcher who discovered and reported the vulnerability to teler-waf developers. Their efforts have contributed to the improvement of teler-waf development.
References