CVE-2023-45283 (GCVE-0-2023-45283)

Vulnerability from cvelistv5 – Published: 2023-11-09 16:30 – Updated: 2025-02-13 17:13
VLAI
Title
Insecure parsing of Windows paths with a \??\ prefix in path/filepath
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.
Severity
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
CWE
  • CWE-41 - Improper Resolution of Path Equivalence
Assigner
Go
References
Impacted products
Vendor Product Version
Go standard library path/filepath Affected: 0 , < 1.20.11 (semver)
Affected: 1.21.0-0 , < 1.21.4 (semver)
Create a notification for this product.
Go standard library internal/safefilepath Affected: 0 , < 1.20.11 (semver)
Affected: 1.21.0-0 , < 1.21.4 (semver)
Create a notification for this product.
Go standard library path/filepath Affected: 1.20.11 , < 1.20.12 (semver)
Affected: 1.21.4 , < 1.21.5 (semver)
Create a notification for this product.
Show details on NVD website
To clipboard 

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  }
}


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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.