CVE-2021-22864
6.5 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
SINGLE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:L/Au:S/C:P/I:P/A:P
8.8 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
8.8 High
AI Score
Confidence
High
0.009 Low
EPSS
Percentile
83.1%
A remote code execution vulnerability was identified in GitHub Enterprise Server that could be exploited when building a GitHub Pages site. User-controlled configuration options used by GitHub Pages were not sufficiently restricted and made it possible to override environment variables leading to code execution on the GitHub Enterprise Server instance. To exploit this vulnerability, an attacker would need permission to create and build a GitHub Pages site on the GitHub Enterprise Server instance. This vulnerability affected all versions of GitHub Enterprise Server prior to 3.0.3 and was fixed in 3.0.3, 2.22.9, and 2.21.17. This vulnerability was reported via the GitHub Bug Bounty program.
Affected configurations
| Vendor | Product | Version | CPE |
|---|---|---|---|
| github | enterprise_server | * | cpe:2.3:a:github:enterprise_server:*:*:*:*:*:*:*:* |
| github | enterprise_server | * | cpe:2.3:a:github:enterprise_server:*:*:*:*:*:*:*:* |
| github | enterprise_server | * | cpe:2.3:a:github:enterprise_server:*:*:*:*:*:*:*:* |
CNA Affected
[
{
"product": "GitHub Enterprise Server",
"vendor": "GitHub",
"versions": [
{
"lessThan": "2.21.17",
"status": "affected",
"version": "2.21",
"versionType": "custom"
},
{
"lessThan": "2.22.9",
"status": "affected",
"version": "2.22",
"versionType": "custom"
},
{
"lessThan": "3.0.3",
"status": "affected",
"version": "3.0",
"versionType": "custom"
}
]
}
]References
Social References
More
Related
6.5 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
SINGLE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:L/Au:S/C:P/I:P/A:P
8.8 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
8.8 High
AI Score
Confidence
High
0.009 Low
EPSS
Percentile
83.1%