Remote Code Execution Vulnerability in Apache Struts by Apache
CVE-2020-17530

9.8CRITICAL

Key Information:

Vendor

Apache

Vendor
CVE Published:
11 December 2020

Badges

👾 Exploit Exists🟡 Public PoC🟣 EPSS 94%🦅 CISA Reported

What is CVE-2020-17530?

This vulnerability involves forced OGNL evaluation on raw user input within tag attributes in Apache Struts. If exploited, it could allow an attacker to execute arbitrary code on the server, potentially leading to full system compromise. The issue affects versions from Apache Struts 2.0.0 to 2.5.25, highlighting the need for proper input validation and safe coding practices to mitigate such risks.

CISA has reported CVE-2020-17530

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-2020-17530 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 Struts 2.0.0 - Struts 2.5.25

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

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

  • 👾

    Exploit known to exist

  • 🦅

    CISA Reported

  • Vulnerability published

  • 🟡

    Public PoC available

  • Vulnerability Reserved

.