CVSS3
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
AI Score
Confidence
Low
EPSS
Percentile
37.4%
SSVC
Exploitation
none
Automatable
no
Technical Impact
total
Mattermost versions 9.8.x <= 9.8.0, 9.7.x <= 9.7.4, 9.6.x <= 9.6.2 and 9.5.x <= 9.5.5, when shared channels are enabled, fail to use constant time comparison for remote cluster tokens which allows an attacker to retrieve the remote cluster token via a timing attack during remote cluster token comparison.
[
{
"cpes": [
"cpe:2.3:a:mattermost:mattermost:9.8.0:*:*:*:*:*:*:*"
],
"vendor": "mattermost",
"product": "mattermost",
"versions": [
{
"status": "affected",
"version": "9.8.0"
}
],
"defaultStatus": "unaffected"
},
{
"cpes": [
"cpe:2.3:a:mattermost:mattermost:9.7.0:*:*:*:*:*:*:*"
],
"vendor": "mattermost",
"product": "mattermost",
"versions": [
{
"status": "affected",
"version": "9.7.0",
"versionType": "custom",
"lessThanOrEqual": "9.7.4"
}
],
"defaultStatus": "unaffected"
},
{
"cpes": [
"cpe:2.3:a:mattermost:mattermost:9.6.0:*:*:*:*:*:*:*"
],
"vendor": "mattermost",
"product": "mattermost",
"versions": [
{
"status": "affected",
"version": "9.6.0",
"versionType": "custom",
"lessThanOrEqual": "9.6.2"
}
],
"defaultStatus": "unaffected"
},
{
"cpes": [
"cpe:2.3:a:mattermost:mattermost:9.5.0:*:*:*:*:*:*:*"
],
"vendor": "mattermost",
"product": "mattermost",
"versions": [
{
"status": "affected",
"version": "9.5.0",
"versionType": "custom",
"lessThanOrEqual": "9.5.5"
}
],
"defaultStatus": "unaffected"
}
]
CVSS3
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
AI Score
Confidence
Low
EPSS
Percentile
37.4%
SSVC
Exploitation
none
Automatable
no
Technical Impact
total