PoC Index85,079 CVEs with PoCs

CVE-2020-9484

HIGH 7.0EPSS 55.5%

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
Apache Tomcat
CVSS v3.1 NVD
7.0 HIGHCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS v2.0 NVD
4.4 MEDIUMAV:L/AC:M/Au:N/C:P/I:P/A:P
EPSS
55.52% chance of exploitation in the next 30 days, 99th percentile
Nuclei
high · CWE-502
Published
2020-05-20
Updated
2026-10-08

Proof-of-concept exploits (18)

Nuclei templates (1)

Security advisories

References

Related