CVE-2020-9484Not scoredCWE-502

CVE-2020-9484: Apache Tomcat Remote Command Execution

Apache · Apache Tomcat

Vendor fix available · Affected: Apache Tomcat · Exploitation: check available, not yet exploited

Not in CyberSIXT coverage yet: no article names this CVE. This page shows the public record.

55.5%probability of exploitation in the next 30 days

99th percentile

050100

Higher than 99% of scored CVEs

Not scored yet. The CVE record carries no CVSS score.

DescriptionCVE.org

When using Apache Tomcat versions 10.0.0-M1 to 10.0.0-M4, 9.0.0.M1 to 9.0.34, 8.5.0 to 8.5.54 and 7.0.0 to 7.0.103 if a) an attacker is able to control the contents and name of a file on the server; and b) the server is configured to use the PersistenceManager with a FileStore; and c) the PersistenceManager is configured with sessionAttributeValueClassNameFilter="null" (the default unless a SecurityManager is used) or a sufficiently lax filter to allow the attacker provided object to be deserialized; and d) the attacker knows the relative file path from the storage location used by FileStore to the file the attacker has control over; then, using a specifically crafted request, the attacker will be able to trigger remote code execution via deserialization of the file under their control. Note that all of conditions a) to d) must be true for the attack to succeed.

Affected products1

From the CVE record. A product or version that is not listed is unknown, not unaffected.

Apache TomcatApache Tomcat 10.0.0-M1 to 10.0.0-M4, 9.0.0.M1 to 9.0.34, 8…

On the Atlas

Every published CVE is on the CyberSIXT Atlas, grouped by weakness, vendor and month.

Open the Atlas

Exploitation: Check available, not yet exploited. A public nuclei template can confirm it on a system you are authorised to test.
CISA KEV: Not listed
Public check: Apache Tomcat Remote Command Execution · nuclei template in projectdiscovery/nuclei-templates
Weakness: Deserialization of Untrusted Data · Deserialization and Object Injection
Vendor: Apache
Published: May 2020
Band: Check available, not yet exploited, May 2020

CoverageNo articles yet

No CyberSIXT article names CVE-2020-9484 yet, so there is no coverage timeline, action brief or change log for it. Everything on this page comes from the public CVE record, CISA KEV, EPSS and the nuclei template index. Search the archive or see the CVEs in the news.

References

28 more references are in the CVE record.