High severity · published Mar 1, 2019
CVE-2018-20798
The expiretable configuration in pfSense 2.4.4_1 establishes block durations that are incompatible with the block durations implemented by sshguard, which might make it easier for…
7.5
CVSS
1.4%
EPSS
No
On KEV
Description
The expiretable configuration in pfSense 2.4.4_1 establishes block durations that are incompatible with the block durations implemented by sshguard, which might make it easier for attackers to bypass intended access restrictions.
CVSS vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
High
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.4% · higher than 73% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
PF
Pfsense · Netgate
2.4.4 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2018-20798
CVE.org
https://www.cve.org/CVERecord?id=CVE-2018-20798
Exploit
https://redmine.pfsense.org/issues/9223
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