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CVE-2020-4462

HIGHCVSS 8.2/10EPSS 3.25%

Last modified

CVE-2020-4462 is a high-severity vulnerability rated 8.2/10 on the CVSS scale. IBM Sterling External Authentication Server 6.0.1, 6.0.0, 2.4.3.2, and 2.4.2 and IBM Sterling Secure Proxy 6.0.1, 6.0.0, 3.4.3, and 3.4.2 are vulnerable to an 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. EPSS estimates a 3.25% chance of exploitation in the next 30 days.

Description

IBM Sterling External Authentication Server 6.0.1, 6.0.0, 2.4.3.2, and 2.4.2 and IBM Sterling Secure Proxy 6.0.1, 6.0.0, 3.4.3, and 3.4.2 are vulnerable to an 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: 181482.

Metrics

CVSS 3.1
8.2/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:L

EPSS Probability
3.25%

86.7th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
IbmSterling External Authentication Server2.4.2.0
IbmSterling External Authentication Server2.4.3.2
IbmSterling External Authentication Server6.0.0.0
IbmSterling External Authentication Server6.0.1.0
IbmSterling Secure Proxy3.4.2.0
IbmSterling Secure Proxy3.4.3.0
IbmSterling Secure Proxy6.0.0.0
IbmSterling Secure Proxy6.0.1.0

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2020-4462?
IBM Sterling External Authentication Server 6.0.1, 6.0.0, 2.4.3.2, and 2.4.2 and IBM Sterling Secure Proxy 6.0.1, 6.0.0, 3.4.3, and 3.4.2 are vulnerable to an 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: 181482.
How severe is CVE-2020-4462?
CVE-2020-4462 has a CVSS score of 8.2/10 (HIGH severity). The EPSS model estimates a 3.25% probability of exploitation in the next 30 days.
How do I fix CVE-2020-4462?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2020-4462?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST