The filepath package does not recognize paths with a \??\ prefix as special. On Windows, a path beginning with \??\ is a Root Local Device path equivalent to a path beginning with \\?\. Paths with a \??\ prefix may be used to access arbitrary locations on the system. For example, the path \??\c:\x is equivalent to the more common path c:\x. Before fix, Clean could convert a rooted path such as \a\..\??\b into the root local device path \??\b. Clean will now convert this to .\??\b. Similarly, Join(\, ??, b) could convert a seemingly innocent sequence of path elements into the root local device path \??\b. Join will now convert this to \.\??\b. In addition, with fix, IsAbs now correctly reports paths beginning with \??\ as absolute, and VolumeName correctly reports the \??\ prefix as a volume name. UPDATE: Go 1.20.11 and Go 1.21.4 inadvertently changed the definition of the volume name in Windows paths starting with \?, resulting in filepath.Clean(\?\c:) returning \?\c: rather than \?\c:\ (among other effects). The previous behavior has been restored.
References
Link | Resource |
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http://www.openwall.com/lists/oss-security/2023/12/05/2 | |
https://go.dev/cl/540277 | Issue Tracking Vendor Advisory |
https://go.dev/cl/541175 | |
https://go.dev/issue/63713 | Issue Tracking Vendor Advisory |
https://go.dev/issue/64028 | |
https://groups.google.com/g/golang-announce/c/4tU8LZfBFkY | Issue Tracking Mailing List Vendor Advisory |
https://groups.google.com/g/golang-dev/c/6ypN5EjibjM/m/KmLVYH_uAgAJ | |
https://pkg.go.dev/vuln/GO-2023-2185 | Issue Tracking Vendor Advisory |
https://security.netapp.com/advisory/ntap-20231214-0008/ |
Configurations
Configuration 1 (hide)
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History
14 Dec 2023, 10:15
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06 Dec 2023, 17:15
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Summary | The filepath package does not recognize paths with a \??\ prefix as special. On Windows, a path beginning with \??\ is a Root Local Device path equivalent to a path beginning with \\?\. Paths with a \??\ prefix may be used to access arbitrary locations on the system. For example, the path \??\c:\x is equivalent to the more common path c:\x. Before fix, Clean could convert a rooted path such as \a\..\??\b into the root local device path \??\b. Clean will now convert this to .\??\b. Similarly, Join(\, ??, b) could convert a seemingly innocent sequence of path elements into the root local device path \??\b. Join will now convert this to \.\??\b. In addition, with fix, IsAbs now correctly reports paths beginning with \??\ as absolute, and VolumeName correctly reports the \??\ prefix as a volume name. UPDATE: Go 1.20.11 and Go 1.21.4 inadvertently changed the definition of the volume name in Windows paths starting with \?, resulting in filepath.Clean(\?\c:) returning \?\c: rather than \?\c:\ (among other effects). The previous behavior has been restored. | |
References |
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06 Dec 2023, 03:15
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New CVE |
Information
Published : 2023-11-09 17:15
Updated : 2024-02-05 00:22
NVD link : CVE-2023-45283
Mitre link : CVE-2023-45283
CVE.ORG link : CVE-2023-45283
JSON object : View
Products Affected
microsoft
- windows
golang
- go
CWE
CWE-22
Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')