CVE-2020-26234
4.8 Medium
CVSS3
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
LOW
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
HIGH
Availability Impact
NONE
CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:N/I:H/A:N
4.8 Medium
AI Score
Confidence
High
2.1 Low
CVSS2
Access Vector
Access Complexity
Authentication
SINGLE
Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:N/AC:H/Au:S/C:N/I:P/A:N
0.001 Low
EPSS
Percentile
19.1%
Opencast before versions 8.9 and 7.9 disables HTTPS hostname verification of its HTTP client used for a large portion of Opencast’s HTTP requests. Hostname verification is an important part when using HTTPS to ensure that the presented certificate is valid for the host. Disabling it can allow for man-in-the-middle attacks. This problem is fixed in Opencast 7.9 and Opencast 8.8 Please be aware that fixing the problem means that Opencast will not simply accept any self-signed certificates any longer without properly importing them. If you need those, please make sure to import them into the Java key store. Better yet, get a valid certificate.
Affected configurations
CNA Affected
[
{
"product": "opencast",
"vendor": "opencast",
"versions": [
{
"status": "affected",
"version": "< 7.9"
},
{
"status": "affected",
"version": ">= 8.0, < 8.9"
}
]
}
]Related
4.8 Medium
CVSS3
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
LOW
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
HIGH
Availability Impact
NONE
CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:N/I:H/A:N
4.8 Medium
AI Score
Confidence
High
2.1 Low
CVSS2
Access Vector
Access Complexity
Authentication
SINGLE
Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:N/AC:H/Au:S/C:N/I:P/A:N
0.001 Low
EPSS
Percentile
19.1%