Critical severity · published May 22, 2020
CVE-2020-13388
An exploitable vulnerability exists in the configuration-loading functionality of the jw.util package before 2.3 for Python
9.8
CVSS
4.5%
EPSS
No
On KEV
Description
An exploitable vulnerability exists in the configuration-loading functionality of the jw.util package before 2.3 for Python. When loading a configuration with FromString or FromStream with YAML, one can execute arbitrary Python code, resulting in OS command execution, because safe_load is not used.
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)4.5% · higher than 92% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
JW
Jw.util · Python
before 2.3 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2020-13388
CVE.org
https://www.cve.org/CVERecord?id=CVE-2020-13388
Exploit
https://joel-malwarebenchmark.github.io
Exploit
https://joel-malwarebenchmark.github.io/blog/2020/04/27/cve-2020-13388-jw-util-vulnerability/
Third Party Advisory
https://security.netapp.com/advisory/ntap-20200528-0002/