Path Equivalence: '//multiple/leading/slash'

Opis

The product accepts path input in the form of multiple leading slash ('//multiple/leading/slash') without appropriate validation, which can lead to ambiguous path resolution and allow an attacker to traverse the file system to unintended locations or access arbitrary files.

Skutki

• Confidentiality, Integrity

  Read Files or Directories; Modify Files or Directories

Przykłady podatności

• CVE-2002-1483 Read files with full pathname using multiple internal slash.
• CVE-1999-1456 Server allows remote attackers to read arbitrary files via a GET request with more than one leading / (slash) character in the filename.
• CVE-2004-0578 Server allows remote attackers to read arbitrary files via leading slash (//) characters in a URL request.
• CVE-2002-0275 Server allows remote attackers to bypass authentication and read restricted files via an extra / (slash) in the requested URL.
• CVE-2004-1032 Product allows local users to delete arbitrary files or create arbitrary empty files via a target filename with a large number of leading slash (/) characters.
• CVE-2002-1238 Server allows remote attackers to bypass access restrictions for files via an HTTP request with a sequence of multiple / (slash) characters such as http://www.example.com///file/.
• CVE-2004-1878 Product allows remote attackers to bypass authentication, obtain sensitive information, or gain access via a direct request to admin/user.pl preceded by // (double leading slash).
• CVE-2005-1365 Server allows remote attackers to execute arbitrary commands via a URL with multiple leading "/" (slash) characters and ".." sequences.
• CVE-2000-1050 Access directory using multiple leading slash.
• CVE-2001-1072 Bypass access restrictions via multiple leading slash, which causes a regular expression to fail.
• CVE-2004-0235 Archive extracts to arbitrary files using multiple leading slash in filenames in the archive.

Słabość nadrzędna

• CWE-41 Improper Resolution of Path Equivalence
• CWE-161 Improper Neutralization of Multiple Leading Special Elements

Kiedy powstaje

• Implementation

Dotyczy

Not Language-Specific