CVE-2023-26047

teler-waf is a Go HTTP middleware that provides teler IDS functionality to protect against web-based attacks. In teler-waf prior to version v0.2.0 is vulnerable to a bypass attack when a specific case-sensitive hex entities payload with special characters such as CR/LF and horizontal tab 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. 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. This issue has been patched in version 0.2.0.

CVSS v3.0 6.1 MEDIUM

6.1^/10

CVSS v3.0 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 2.7

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact NONE

Scope CHANGED

References

Link	Resource
https://github.com/dwisiswant0/cwa-filter-rules/commit/d818d1645832d1a02cd210c7680e692d2bf4313b	Patch
https://github.com/kitabisa/teler-waf/security/advisories/GHSA-p2pf-g8cq-3gq5	Third Party Advisory
https://github.com/kitabisa/teler-waf/releases/tag/v0.2.0	Release Notes

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Configurations

Configuration 1 (hide)

cpe:2.3:a:kitabisa:teler-waf:*:*:*:*:*:*:*:*

Information

Published : 2023-03-03 15:15

Updated : 2023-03-10 07:03

NVD link : CVE-2023-26047

Mitre link : CVE-2023-26047

JSON object : View

CWE

CWE-79

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

CWE-80

Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS)

CWE-692

Incomplete Denylist to Cross-Site Scripting

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Products Affected

kitabisa

teler-waf

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