CVE-2020-4462 XML external entity in External Authentication Server
Remote attackers can exploit XML External Entity injection in IBM Sterling servers to expose sensitive information or cause denial of service.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2020-4462?
CVE-2020-4462 is a high-severity vulnerability in IBM External Authentication Server, published on 16 Jul 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official 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.
Weakness: CWE-611
Which versions are affected by CVE-2020-4462?
It affects 2 products.
Products include Ibm Sterling External Authentication Server, Ibm Sterling Secure Proxy.
How do I fix CVE-2020-4462?
No fix has been published for CVE-2020-4462 yet. Limit exposure of the affected software until one is available.
Is CVE-2020-4462 being exploited?
There is no known exploitation of CVE-2020-4462 in the wild and no public exploit code.
Other vulnerabilities in IBM External Authentication Server
- CVE-2013-0517 Command injection in Sterling External Authentication Server
- CVE-2022-22336 Denial of service in Sterling Secure Proxy
- CVE-2022-22333 Memory corruption in Sterling Secure Proxy
- CVE-2021-29722 Weak cryptography in Sterling Secure Proxy
- CVE-2021-29723 Weak cryptography in Sterling Secure Proxy
Sources
Also known as GHSA-4p7q-hvhp-3r8p.