CVE-2017-5645

9.8CRITICAL

Key Information:

Vendor
Apache
Status
Apache Log4j
Vendor
CVE Published:
17 April 2017

Badges

👾 Exploit Exists🟡 Public PoC🟣 EPSS 92%

Summary

In Apache Log4j 2.x before 2.8.2, when using the TCP socket server or UDP socket server to receive serialized log events from another application, a specially crafted binary payload can be sent that, when deserialized, can execute arbitrary code.

Affected Version(s)

Apache Log4j All versions between 2.0-alpha1 and 2.8.1

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.

CVE-2017-5645
Created by pimps

References

https://access.redhat.com/errata/RHSA-2017:2888
vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2017:2809
vendor-advisoryx_refsource_REDHAT
http://www.securityfocus.com/bid/97702
vdb-entryx_refsource_BID

EPSS Score

92% 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

  • Vulnerability published

  • Vulnerability Reserved

.