ElasticCVELIST:CVE-2023-31421CVE-2023-31421 Beats, Elastic Agent, APM Server, and Fleet Server Improper Certificate Validation issue
CVSS3
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
EPSS
Percentile
28.7%
It was discovered that when acting as TLS clients, Beats, Elastic Agent, APM Server, and Fleet Server did not verify whether the server certificate is valid for the target IP address; however, certificate signature validation is still performed. More specifically, when the client is configured to connect to an IP address (instead of a hostname) it does not validate the server certificate’s IP SAN values against that IP address and certificate validation fails, and therefore the connection is not blocked as expected.
CNA Affected
[
{
"defaultStatus": "unaffected",
"product": "Beats",
"vendor": "Elastic",
"versions": [
{
"status": "affected",
"version": "8.0.0, 8.9.2"
}
]
},
{
"defaultStatus": "unaffected",
"product": "Elastic Agent",
"vendor": "Elastic",
"versions": [
{
"status": "affected",
"version": "8.0.0, 8.9.2"
}
]
},
{
"defaultStatus": "unaffected",
"product": "APM Server",
"vendor": "Elastic",
"versions": [
{
"status": "affected",
"version": "8.0.0, 8.9.2"
}
]
},
{
"defaultStatus": "unaffected",
"product": "Fleet Server",
"vendor": "Elastic",
"versions": [
{
"status": "affected",
"version": "8.0.0, 8.9.2"
}
]
}
]Related
CVSS3
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
EPSS
Percentile
28.7%