HTTP: Microsoft Exchange Server HandleBackEndCalculationException Reflected Cross-Site Scripting
This signature detects attempts to exploit a known cross-site scripting vulnerability against Microsoft Exchange Server. It is due to insufficient validation of user-supplied input. Attackers can steal cookie-based authentication credentials and launch other attacks.
Extended Description
Microsoft Exchange Server Spoofing Vulnerability
Affected Products
Microsoft exchange_server
References
CVE: CVE-2021-41349
URL: https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2021-41349
Short Name
HTTP:XSS:MS-EXCHG-HNDLBCK
Severity
Minor
Recommended
True
Recommended Action
Drop
Category
HTTP
Keywords
CVE-2021-41349 Cross-Site Exchange HandleBackEndCalculationException Microsoft Reflected Scripting Server
Release Date
12/21/2021
Supported Platforms
srx-branch-12.3
srx-19.3
srx-branch-19.3
vsrx3bsd-19.2
srx-branch-19.4
vsrx-19.4
mx-12.3
mx-19.4
vmx-19.4
mx-19.3
vsrx3bsd-19.4
srx-19.4
vsrx-12.3
vmx-19.3
vsrx-19.2
srx-12.3
Sigpack Version
3665
False Positive
Unknown
Vendors
Microsoft
CVSS Score
4.3