Remote Code Execution Vulnerability in Apache Shiro by Vendor Apache
CVE-2016-4437
Key Information:
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What is CVE-2016-4437?
Apache Shiro versions prior to 1.2.5 contain a vulnerability in the 'remember me' feature. When a cipher key is not properly configured, it opens the door for remote attackers to execute arbitrary code or bypass intended access controls using unspecified request parameters. This flaw poses a significant threat as it compromises application security, allowing unauthorized actions by malicious actors. Proper configuration and updates to the latest version are crucial to mitigate risks associated with this vulnerability.
CISA has reported CVE-2016-4437
CISA provides regional cyber and physical services to support security and resilience across the United States. CISA monitor the most dangerious vulnerabilities and have identifed CVE-2016-4437 as being exploited but is not known by the CISA to be used in ransomware campaigns. This is subject to change at pace
The CISA's recommendation is: Apply updates per vendor instructions.
Exploit Proof of Concept (PoC)
PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.
References
EPSS Score
94% chance of being exploited in the next 30 days.
CVSS V3.1
Timeline
- 🟡
Public PoC available
- 👾
Exploit known to exist
- 🦅
CISA Reported
Vulnerability published
Vulnerability Reserved