HTTP: Apache Log4j2 CVE-2021-45105 Denial Of Service
This signature detects attempts to exploit a known vulnerability against Apache Log4j. A successful attack can result in a denial-of-service condition.
Extended Description
Apache Log4j2 versions 2.0-alpha1 through 2.16.0 (excluding 2.12.3 and 2.3.1) did not protect from uncontrolled recursion from self-referential lookups. This allows an attacker with control over Thread Context Map data to cause a denial of service when a crafted string is interpreted. This issue was fixed in Log4j 2.17.0, 2.12.3, and 2.3.1.
Affected Products
Oracle healthcare_translational_research
References
CVE: CVE-2021-45105
Short Name
HTTP:DOS:APACHE-LOG4J-DOS
Severity
Minor
Recommended
True
Recommended Action
Drop
Category
HTTP
Keywords
Apache CVE-2021-45105 Denial Log4j2 Of Service
Release Date
12/20/2021
Supported Platforms
srx-branch-12.3
srx-branch-19.3
vsrx3bsd-19.2
vsrx3bsd-19.4
srx-branch-19.4
vsrx-19.4
srx-19.4
vsrx-12.3
srx-12.3
vsrx-19.2
srx-19.3
vmx-19.4
mx-12.3
mx-19.4
mx-19.3
vmx-19.3
Sigpack Version
3693
False Positive
Unknown
Vendors
Apache
Sonicwall
Oracle
Netapp
Debian
CVSS Score
4.3