GoogleOSV:GHSA-8CFG-VX93-JVXWKubernetes client-go vulnerable to Sensitive Information Leak via Log File
5.5 Medium
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
2.1 Low
CVSS2
Access Vector
LOCAL
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
NONE
AV:L/AC:L/Au:N/C:P/I:N/A:N
0.0004 Low
EPSS
Percentile
11.9%
In Kubernetes, if the logging level is set to at least 9, authorization and bearer tokens will be written to log files. This can occur both in API server logs and client tool output like kubectl. This affects <= v1.19.5, <= v1.18.13, <= v1.17.15, < v1.20.0-alpha2.
References
github.com/kubernetes/client-go
github.com/kubernetes/client-go/commit/19875a3d5a2e0d4f51c976a9e0662de3c2c011e3
github.com/kubernetes/client-go/commit/1b8383fc150c9b816b0072032cca75754c2734d0
github.com/kubernetes/client-go/commit/44e1a07f2d513e375c4b6ee6e890040b47befe86
github.com/kubernetes/client-go/commit/e8f871a2e5fadf90fc114565abc0963967f1a373
github.com/kubernetes/kubernetes/commit/e99df0e5a75eb6e86123b56d53e9b7ca0fd00419
github.com/kubernetes/kubernetes/issues/95623
github.com/kubernetes/kubernetes/pull/95316
groups.google.com/g/kubernetes-security-discuss/c/vm-HcrFUOCs/m/36utxAM5CwAJ
nvd.nist.gov/vuln/detail/CVE-2020-8565
pkg.go.dev/vuln/GO-2021-0064
Related
5.5 Medium
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
2.1 Low
CVSS2
Access Vector
LOCAL
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
NONE
AV:L/AC:L/Au:N/C:P/I:N/A:N
0.0004 Low
EPSS
Percentile
11.9%