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.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (3.25%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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.
- CVSS 3.1
- 8.2 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:L
- EPSS
- 3.25% probability · 88th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-611
- Affected
- ibm/sterling external authentication server · ibm/sterling secure proxy
- Source
- psirt@us.ibm.com
References
- https://exchange.xforce.ibmcloud.com/vulnerabilities/181482VDB Entry, Vendor Advisory
- https://www.ibm.com/support/pages/node/6249317Vendor Advisory
- https://www.ibm.com/support/pages/node/6249331Vendor Advisory
- https://exchange.xforce.ibmcloud.com/vulnerabilities/181482VDB Entry, Vendor Advisory
- https://www.ibm.com/support/pages/node/6249317Vendor Advisory
- https://www.ibm.com/support/pages/node/6249331Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.