Critical severity · published Sep 2, 2023
CVE-2023-39979
MXsecurity Authentication Bypass
9.8
CVSS
1%
EPSS
No
On KEV
Description
There is a vulnerability in MXsecurity versions prior to 1.0.1 that can be exploited to bypass authentication. A remote attacker might access the system if the web service authenticator has insufficient random values.
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)1.0% · higher than 62% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
MS
MXsecurity Series · Moxa
1.0 through 1.0.1 · source: vendor
MX
Mxsecurity · Moxa
before 1.1.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2023-39979
CVE.org
https://www.cve.org/CVERecord?id=CVE-2023-39979
Vendor Advisory
https://www.moxa.com/en/support/product-support/security-advisory/mpsa-230403-mxsecurity-series-multiple-vulnerabilities
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6.3
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