Critical severity · published Jan 6, 2022
CVE-2021-31522
Kylin can receive user input and load any class through Class.forName(...)
9.8
CVSS
2.9%
EPSS
No
On KEV
Description
Kylin can receive user input and load any class through Class.forName(...). This issue affects Apache Kylin 2 version 2.6.6 and prior versions; Apache Kylin 3 version 3.1.2 and prior versions; Apache Kylin 4 version 4.0.0 and prior versions.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)2.9% · higher than 87% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
KY
Kylin · Apache
2.0.0 through 2.6.6; 3.0.0 before 3.1.3; 4.0.0; 4.0.0; 4.0.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-31522
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-31522
Mailing List
http://www.openwall.com/lists/oss-security/2022/01/06/4
Patch
https://lists.apache.org/thread/hh5crx3yr701zd8wtpqo1mww2rlkvznw
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