CVE-2020-4782 Path traversal in WebSphere Application Server

What is CVE-2020-4782?

CVE-2020-4782 is a medium-severity path traversal vulnerability in Ibm Websphere Application Server, published on 28 Oct 2020. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

IBM WebSphere Application Server 7.0, 8.0, 8.5, and 9.0 could allow a remote attacker to traverse directories on the system. An attacker could send a specially-crafted URL request containing "dot dot" sequences (/../) to view arbitrary files on the system.

Weakness: CWE-22

Which versions are affected by CVE-2020-4782?

It affects 1 product.

Products include Ibm Websphere Application Server.

How do I fix CVE-2020-4782?

No fix has been published for CVE-2020-4782 yet. Limit exposure of the affected software until one is available.

Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.

Is CVE-2020-4782 being exploited?

There is no known exploitation of CVE-2020-4782 in the wild and no public exploit code.

Other vulnerabilities in Ibm Websphere Application Server

• CVE-2015-1920 Code injection in n/a Critical 10.0
• CVE-2013-0462 Other in n/a Critical 10.0
• CVE-2011-1377 Security feature bypass in n/a Critical 10.0
• CVE-2010-3186 Other in n/a Critical 10.0
• CVE-2009-1899 Information disclosure in n/a Critical 10.0

All Ibm Websphere Application Server vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-489v-5hfj-rmgc.