Medium severity · published Jan 14, 2021
CVE-2021-24122
Apache Tomcat information disclosure
5.9
CVSS
22.9%
EPSS
No
On KEV
Description
When serving resources from a network location using the NTFS file system, Apache Tomcat versions 10.0.0-M1 to 10.0.0-M9, 9.0.0.M1 to 9.0.39, 8.5.0 to 8.5.59 and 7.0.0 to 7.0.106 were susceptible to JSP source code disclosure in some configurations. The root cause was the unexpected behaviour of the JRE API File.getCanonicalPath() which in turn was caused by the inconsistent behaviour of the Windows API (FindFirstFileW) in some circumstances.
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
Attack vector
Network
Complexity
High
Privileges
None
User interaction
None
Confidentiality
High
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)22.9% · higher than 98% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
TO
Tomcat · Apache
Apache Tomcat 10 before 10.0.0-M10; Apache Tomcat 9 before 9.0.40; Apache Tomcat 8.5 before 8.5.60; Apache Tomcat 7 before 7.0.106 · source: vendor, NVD
AP
Agile Product Lifecycle Management · Oracle
9.3.3; 9.3.6 · source: NVD
DL
Debian Linux · Debian
9.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-24122
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-24122
Mailing List
http://www.openwall.com/lists/oss-security/2021/01/14/1
lists.apache.org
https://lists.apache.org/thread.html/r1595889b083e05986f42b944dc43060d6b083022260b6ea64d2cec52%40%3Cannounce.apache.org%3E
Mailing List
https://lists.apache.org/thread.html/r1595889b083e05986f42b944dc43060d6b083022260b6ea64d2cec52%40%3Cannounce.tomcat.apache.org%3E
lists.apache.org
https://lists.apache.org/thread.html/r7382e1e35b9bc7c8f320b90ad77e74c13172d08034e20c18000fe710%40%3Cdev.tomee.apache.org%3E
lists.apache.org
https://lists.apache.org/thread.html/r776c64337495bf28b7d5597268114a888e3fad6045c40a0da0c66d4d%40%3Cdev.tomee.apache.org%3E
lists.apache.org
https://lists.apache.org/thread.html/r7e0bb9ea415724550e2b325e143b23e269579e54d66fcd7754bd0c20%40%3Cdev.tomcat.apache.org%3E
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