CVE-2023-45283

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.
Configurations

Configuration 1 (hide)

AND
OR cpe:2.3:a:golang:go:*:*:*:*:*:*:*:*
cpe:2.3:a:golang:go:*:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:*

History

14 Dec 2023, 10:15

Type Values Removed Values Added
References
  • () https://security.netapp.com/advisory/ntap-20231214-0008/ -

06 Dec 2023, 17:15

Type Values Removed Values Added
References
  • () https://go.dev/cl/541175 -
  • () https://groups.google.com/g/golang-dev/c/6ypN5EjibjM/m/KmLVYH_uAgAJ -
  • () https://go.dev/issue/64028 -
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. 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.

06 Dec 2023, 03:15

Type Values Removed Values Added
References
  • () http://www.openwall.com/lists/oss-security/2023/12/05/2 -

17 Nov 2023, 16:39

Type Values Removed Values Added
References () https://groups.google.com/g/golang-announce/c/4tU8LZfBFkY - () https://groups.google.com/g/golang-announce/c/4tU8LZfBFkY - Issue Tracking, Mailing List, Vendor Advisory
References () https://pkg.go.dev/vuln/GO-2023-2185 - () https://pkg.go.dev/vuln/GO-2023-2185 - Issue Tracking, Vendor Advisory
References () https://go.dev/issue/63713 - () https://go.dev/issue/63713 - Issue Tracking, Vendor Advisory
References () https://go.dev/cl/540277 - () https://go.dev/cl/540277 - Issue Tracking, Vendor Advisory
CPE cpe:2.3:a:golang:go:*:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:*
CVSS v2 : unknown
v3 : unknown
v2 : unknown
v3 : 7.5
CWE CWE-22
First Time Microsoft
Golang
Golang go
Microsoft windows

09 Nov 2023, 19:32

Type Values Removed Values Added
New CVE

Information

Published : 2023-11-09 17:15

Updated : 2023-12-14 10:15


NVD link : CVE-2023-45283

Mitre link : CVE-2023-45283

CVE.ORG link : CVE-2023-45283


JSON object : View

Products Affected

golang

  • go

microsoft

  • windows
CWE
CWE-22

Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')