CVE-2016-4437

9.8CRITICAL

Key Information:

Vendor
Apache
Status
Shiro
Vendor
CVE Published:
7 June 2016

Badges

👾 Exploit Exists🟡 Public PoC🟣 EPSS 97%🦅 CISA Reported

Summary

Apache Shiro before 1.2.5, when a cipher key has not been configured for the "remember me" feature, allows remote attackers to execute arbitrary code or bypass intended access restrictions via an unspecified request parameter.

CISA Reported

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 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.

Awesome_shiro
Created by bkfish

shisoserial
Created by 4nth0ny1130

CVE-2016-4437
Created by pizza-power

References

http://rhn.redhat.com/errata/RHSA-2016-2035.html
vendor-advisoryx_refsource_REDHAT
https://lists.apache.org/thread.html/ef3a800c7d727a00e04b...
mailing-listx_refsource_MLIST
http://packetstormsecurity.com/files/137310/Apache-Shiro-...
x_refsource_MISC

EPSS Score

97% chance of being exploited in the next 30 days.

CVSS V3.1

Score:
9.8
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • 🦅

    CISA Reported

  • Vulnerability published

  • Vulnerability Reserved

.