What is the CVSS score of CVE-2018-1821?

CVE-2018-1821 has a CVSS 3.0 base score of 9.1 (Critical). CVSS vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H. EPSS exploitation probability: 15.8%.

Is there a public PoC exploit available for CVE-2018-1821?

Yes, a public proof-of-concept exploit is available for CVE-2018-1821. Prioritise patching immediately. EPSS: 15.8%.

Operational Decision Manager CVE-2018-1821

CRITICAL

Improper Restriction of XML External Entity Reference (CWE-611)

2018-12-13 psirt@us.ibm.com

IBM XXE Operational Decision Manager

9.1

CVSS 3.0 · NVD

Severity by source

NVD PRIMARY

9.1 CRITICAL

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

High

Lifecycle Timeline

CVE Published

Dec 13, 2018 - 16:29 nvd

CRITICAL 9.1

DescriptionNVD

IBM Operational Decision Management 8.5, 8.6, 8.7, 8.8, and 8.9 is vulnerable to a XML External Entity Injection (XXE) attack when processing XML data. A remote attacker could exploit this vulnerability to expose sensitive information or consume memory resources. IBM X-Force ID: 150170.

AnalysisAI

IBM Operational Decision Management 8.5, 8.6, 8.7, 8.8, and 8.9 is vulnerable to a XML External Entity Injection (XXE) attack when processing XML data. Rated critical severity (CVSS 9.1), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.

Technical ContextAI

This vulnerability is classified as XML External Entity (XXE) (CWE-611), which allows attackers to read arbitrary files or perform SSRF through XML processing. IBM Operational Decision Management 8.5, 8.6, 8.7, 8.8, and 8.9 is vulnerable to a XML External Entity Injection (XXE) attack when processing XML data. A remote attacker could exploit this vulnerability to expose sensitive information or consume memory resources. IBM X-Force ID: 150170. Affected products include: Ibm Operational Decision Manager.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Disable external entity processing in XML parsers, use JSON instead of XML where possible.