Critical severity · published Jun 16, 2021
CVE-2020-9493
Java deserialization in Chainsaw
9.8
CVSS
4.6%
EPSS
No
On KEV
Description
A deserialization flaw was found in Apache Chainsaw versions prior to 2.1.0 which could lead to malicious code execution.
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)4.6% · higher than 92% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
LO
Log4j · Apache
1.2 before 2.0 · source: NVD
AC
Apache Chainsaw · Apache Software Foundation
Apache Chainsaw before 2.1.0 · source: vendor
CH
Chainsaw · Apache
before 2.1.0 · source: NVD
RE
Reload4j · Qos
before 1.2.18.1 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2020-9493
CVE.org
https://www.cve.org/CVERecord?id=CVE-2020-9493
x_refsource_MISC
https://www.openwall.com/lists/oss-security/2021/06/16/1
mailing-list
http://www.openwall.com/lists/oss-security/2021/06/16/1
mailing-list
https://lists.apache.org/thread.html/r50d389c613ba6062a26aa57e163c09bfee4ff2d95d67331d75265b83%40%3Cannounce.apache.org%3E
mailing-list
http://www.openwall.com/lists/oss-security/2022/01/18/5
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