Cyber Resilience

CVE-2020-17530

RCE in Oracle Communications Diameter Intelligence Hub 8.0.0 … 8.2.3

CISA KEVActive ExploitationEUVD ExploitedPublic PoCRCE
Published
11 December 2020
Modified
27 October 2025
KEV Added
03 November 2021
Patch / advisory
View advisory
CVSS Score v3.1 9.8
Click a component to see what it means
Raw vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS Score 0.96 99.9th percentile
Risk Priority 97 floored blend · peak EPSS

Summary

CVE-2020-17530 is a critical-severity Expression Language Injection (CWE-917) vulnerability in Oracle Communications Diameter Intelligence Hub. Its CVSS base score is 9.8 (Critical).

Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked in the top 0.1% of CVEs by exploit likelihood; CISA has added it to the Known Exploited Vulnerabilities catalog; a public proof-of-concept is referenced.

Deeper analysis AI-assisted summary

Synthesised by an AI model from the NVD description and linked references — a reading aid, not an authoritative source.

The vulnerability is forced OGNL evaluation when evaluated on raw user input in tag attributes, which may lead to remote code execution. It affects Apache Struts versions 2.0.0 through 2.5.25 and is associated with CWE-917.

An attacker can exploit the issue remotely over a network without authentication or user interaction, as reflected in the CVSS 3.1 score of 9.8 (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H), resulting in arbitrary code execution with full impact on confidentiality, integrity, and availability.

Advisories and additional details are referenced at https://cwiki.apache.org/confluence/display/WW/S2-061 along with JVN, Packet Storm, OpenWall, and NetApp security notices.

OWASP Top 10 for Web (2025)

A05:2025 Injection

EU & UK References

Vulnerability Data

Forced OGNL evaluation, when evaluated on raw user input in tag attributes, may lead to remote code execution. Affected software : Apache Struts 2.0.0 - Struts 2.5.25.

CWE(s)
CWE-917
KEV Date Added
03 November 2021

Related Threats

MITRE ATT&CK Enterprise Techniques

T1190 Exploit Public-Facing Application Initial Access
Adversaries may attempt to exploit a weakness in an Internet-facing host or system to initially access a network.
attack.mitre.org →
Derived from this CVE’s CWE(s) via the direct CWE→ATT&CK cross-walk.

CVEs Like This One

CVE-2021-45046Same vendor: Apacheboth on KEV
CVE-2020-10199Shared CWE-917both on KEV
CVE-2020-14864Same product: Oracle Business Intelligenceboth on KEV
CVE-2022-26134Shared CWE-917both on KEV
CVE-2021-31805Same product: Apache Struts
CVE-2010-1871Shared CWE-917both on KEV
CVE-2021-26084Shared CWE-917both on KEV
CVE-2006-1547Same product: Apache Strutsboth on KEV
CVE-2021-42013Same vendor: Apacheboth on KEV
CVE-2023-22665Same vendor: Apache

Affected Assets

apache
struts
2.0.0 — 2.5.30
oracle
business intelligence
12.2.1.3.0, 12.2.1.4.0
oracle
communications diameter intelligence hub
8.0.0, 8.1.0, 8.2.0, 8.2.3
oracle
communications policy management
12.5.0
oracle
communications pricing design center
12.0.0.3.0
oracle
financial services data integration hub
8.0.3, 8.0.6
oracle
hospitality opera 5
5.6
oracle
mysql enterprise monitor
8.0.23

Mitigating Controls

Control response

Prevent
Stop it (NIST 800-53)

—

Detect
Catch it (NIST detect / respond)

—

Harden
Shrink the surface (DISA STIG)

—

Validate
Prove the fix (OWASP ASVS)
  • V1.1.2
  • V1.3.2
  • V1.3.5
  • V4.3.1

Mitigating Controls (NIST CSF 2.0) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→CSF cross-walk (authority under review) — links open the control.

PR.PS-06 mostly match
prevents

Secure SDLC practices directly require input neutralization and safe EL construction to prevent injection flaws.

Mitigating Controls (ISO/IEC 27001:2022 Annex A) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→ISO cross-walk (authority under review) — links open the control.

A.8.29 Security testing in development and acceptance mostly match
finds

Security testing in development and acceptance can detect EL injection but does not itself implement the fix.

A.8.25 Secure development life cycle partial match
prevents

Secure SDLC mandates input validation and output encoding that directly prevent expression-language injection.

A.8.26 Application security requirements partial match
prevents

Application security requirements explicitly call for controls against injection flaws including EL injection.

A.8.27 Secure system architecture and engineering principles partial match
prevents

Secure architecture principles reduce the attack surface but do not prescribe the specific neutralization techniques needed.

A.8.28 Secure coding partial match
prevents

Secure coding standards require proper escaping and parameterization of expression-language statements.

References