XML External Entity Injection Vulnerability in IBM Sterling Products
CVE-2020-4462

8.2HIGH

Key Information:

Vendor

IBM
Status
Sterling Secure Proxy
External Authentication Server
Sterling External Authentication Server
Vendor
CVE Published:
16 July 2020

What is CVE-2020-4462?

IBM Sterling External Authentication Server and IBM Sterling Secure Proxy are susceptible to an XML External Entity Injection (XXE) vulnerability when handling XML data. A remote attacker can exploit this weakness to potentially disclose confidential information or exhaust system memory resources, leading to service degradation. This vulnerability underscores the need for robust input validation mechanisms in XML processing environments.

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Deploy the Patch

Affected Version(s)

External Authentication Server 6.0

External Authentication Server 6.0.1

Sterling External Authentication Server 2.4.2

References

https://www.ibm.com/support/pages/node/6249331
x_refsource_CONFIRM
https://www.ibm.com/support/pages/node/6249317
x_refsource_CONFIRM
https://exchange.xforce.ibmcloud.com/vulnerabilities/181482
vdb-entryx_refsource_XF

CVSS V3.1

Score:
8.2
Severity:
HIGH
Confidentiality:
High
Integrity:
None
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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