CVE-2020-9484

Name
CVE-2020-9484
Description
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.
NVD Severity
medium
Other trackers
Mailing lists
Exploits
Forges
GitHub (code, issues), Aports (code, issues)

References

Type URI
Mailing List https://lists.apache.org/thread.html/r77eae567ed829da9012cadb29af17f2df8fa23bf66faf88229857bb1%40%3Cannounce.tomcat.apache.org%3E
Mailing List https://lists.apache.org/thread.html/rf70f53af27e04869bdac18b1fc14a3ee529e59eb12292c8791a77926@%3Cusers.tomcat.apache.org%3E
Third Party Advisory https://lists.debian.org/debian-lts-announce/2020/05/msg00020.html
Third Party Advisory https://lists.apache.org/thread.html/r26950738f4b4ca2d256597cf391d52d3450fa665c297ea5ca38f5469@%3Cusers.tomcat.apache.org%3E
Third Party Advisory http://lists.opensuse.org/opensuse-security-announce/2020-05/msg00057.html
Third Party Advisory https://lists.apache.org/thread.html/r7bc247fffcb1d58415215c861d2354bd653c86266230d78a93c71ae2@%3Cdev.tomcat.apache.org%3E
Third Party Advisory https://security.netapp.com/advisory/ntap-20200528-0005/
Third Party Advisory https://lists.debian.org/debian-lts-announce/2020/05/msg00026.html
Mailing List http://seclists.org/fulldisclosure/2020/Jun/6
Third Party Advisory http://packetstormsecurity.com/files/157924/Apache-Tomcat-CVE-2020-9484-Proof-Of-Concept.html
Third Party Advisory https://security.gentoo.org/glsa/202006-21
Mailing List https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/WJ7XHKWJWDNWXUJH6UB7CLIW4TWOZ26N/
Mailing List https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/GIQHXENTLYUNOES4LXVNJ2NCUQQRF5VJ/
Mailing List https://lists.apache.org/thread.html/rb1c0fb105ce2b93b7ec6fc1b77dd208022621a91c12d1f580813cfed@%3Cdev.tomcat.apache.org%3E
Mailing List https://lists.debian.org/debian-lts-announce/2020/07/msg00010.html
Patch https://www.oracle.com/security-alerts/cpujul2020.html
Third Party Advisory https://www.debian.org/security/2020/dsa-4727
Third Party Advisory https://usn.ubuntu.com/4448-1/
Mailing List https://lists.apache.org/thread.html/rc8473b08abdf3c16494ed817bec1717a0ee0c8080315bc27db5f21c3@%3Ccommits.tomee.apache.org%3E
Mailing List https://lists.apache.org/thread.html/raa4123e472175bb052fbba165d37187cea923f755e8f3f30d124cb3f@%3Ccommits.tomee.apache.org%3E
Mailing List https://lists.apache.org/thread.html/r123b3ebe389f46f9d337923f393cdae4d3e9b78d982d706712f0898c@%3Ccommits.tomee.apache.org%3E
Mailing List https://lists.apache.org/thread.html/rf59c72572b9fee674a5d5cc6afeca4ffc3918a02c354a81cc50b7119@%3Ccommits.tomee.apache.org%3E
Third Party Advisory https://kc.mcafee.com/corporate/index?page=content&id=SB10332
Patch https://www.oracle.com/security-alerts/cpuoct2020.html
Third Party Advisory https://usn.ubuntu.com/4596-1/
Patch https://www.oracle.com/security-alerts/cpujan2021.html
Exploit https://lists.apache.org/thread.html/rf6d5d57b114678d8898005faef31e9fd6d7c981fcc4ccfc3bc272fc9@%3Cdev.tomcat.apache.org%3E
Mailing List https://lists.apache.org/thread.html/rfe62fbf9d4c314f166fe8c668e50e5d9dd882a99447f26f0367474bf@%3Cdev.tomcat.apache.org%3E
Mailing List https://lists.apache.org/thread.html/rfe62fbf9d4c314f166fe8c668e50e5d9dd882a99447f26f0367474bf@%3Cannounce.tomcat.apache.org%3E
Mailing List https://lists.apache.org/thread.html/rfe62fbf9d4c314f166fe8c668e50e5d9dd882a99447f26f0367474bf@%3Cannounce.apache.org%3E
Mailing List https://lists.apache.org/thread.html/rfe62fbf9d4c314f166fe8c668e50e5d9dd882a99447f26f0367474bf@%3Cusers.tomcat.apache.org%3E
Mailing List http://www.openwall.com/lists/oss-security/2021/03/01/2
MLIST https://lists.apache.org/thread.html/r8dd19c514face6dd85fd4eab0271854883f40c7307926c1f7cd5400c@%3Ccommits.tomee.apache.org%3E
MISC https://www.oracle.com/security-alerts/cpuApr2021.html
MLIST https://lists.apache.org/thread.html/r8a2ac0e476dbfc1e6440b09dcc782d444ad635d6da26f0284725a5dc@%3Cusers.tomcat.apache.org%3E
MLIST https://lists.apache.org/thread.html/rb51ccd58b2152fc75125b2406fc93e04ca9d34e737263faa6ff0f41f@%3Cusers.tomcat.apache.org%3E
MLIST https://lists.apache.org/thread.html/r11ce01e8a4c7269b88f88212f21830edf73558997ac7744f37769b77@%3Cusers.tomcat.apache.org%3E
MLIST https://lists.apache.org/thread.html/rc1778b38e74b5b6142414d57623bd55b023a72361f422836782fca3c@%3Cdev.tomcat.apache.org%3E
N/A https://www.oracle.com//security-alerts/cpujul2021.html
MISC https://www.oracle.com/security-alerts/cpuoct2021.html
Patch https://www.oracle.com/security-alerts/cpujan2022.html

Match rules

CPE URI Source package Min version Max version
cpe:2.3:a:apache:tomcat:*:*:*:*:*:*:*:* tomcat >= 7.0.0 < 7.0.108
cpe:2.3:a:apache:tomcat:*:*:*:*:*:*:*:* tomcat >= 8.5.0 < 8.5.63
cpe:2.3:a:apache:tomcat:9.0.0:milestone1:*:*:*:*:*:* tomcat == None == 9.0.0
cpe:2.3:a:apache:tomcat:*:*:*:*:*:*:*:* tomcat >= 9.0.1 < 9.0.43
cpe:2.3:a:apache:tomcat:10.0.0:milestone1:*:*:*:*:*:* tomcat == None == 10.0.0

Vulnerable and fixed packages

Source package Branch Version Maintainer Status