CVE-2017-9805

8.1HIGH

Key Information:

Vendor
Apache
Status
Apache Struts
Vendor
CVE Published:
15 September 2017

Badges

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

Summary

The REST Plugin in Apache Struts 2.1.1 through 2.3.x before 2.3.34 and 2.5.x before 2.5.13 uses an XStreamHandler with an instance of XStream for deserialization without any type filtering, which can lead to Remote Code Execution when deserializing XML payloads.

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.

Affected Version(s)

Apache Struts Apache Struts before 2.3.34 and 2.5.x before 2.5.13

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.

struts-pwn_CVE-2017-9805
Created by mazen160

struts-rce-cve-2017-9805
Created by luc10

cve-2017-9805.py
Created by chrisjd20

References

http://www.oracle.com/technetwork/security-advisory/alert...
x_refsource_CONFIRM
https://struts.apache.org/docs/s2-052.html
x_refsource_CONFIRM
http://www.securitytracker.com/id/1039263
vdb-entryx_refsource_SECTRACK

EPSS Score

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

CVSS V3.1

Score:
8.1
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
High
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • 🦅

    CISA Reported

  • Vulnerability published

  • Vulnerability Reserved

.