Opera "file" HTML input-type could allow a remote attacker to retrieve arbitrary files
|opera-browser-file-retrieval (9188)||Medium Risk|
Opera could allow a remote attacker to obtain any known file from a user's local file system. A remote attacker could create a malicious HTML form with an HTML encoded newline character string ( ) appended to the "value" attribute of the "file" input-type element to obtain any known file from a victim's computer without the victim's knowledge.
Upgrade to the latest version of Opera (6.03 or later), available from the Opera Web site. See References.
- GreyMagic Security Advisory GM#001-OP: Reading ANY local file in Opera.
- Opera Web site: Opera 6.03 changelog.
- Opera Web site: Download Opera.
- BID-4834: Opera Arbitrary File Disclosure Vulnerability
- CVE-2002-0898: Opera 6.0.1 and 6.0.2 allows a remote web site to upload arbitrary files from the client system, without prompting the client, via an input type=file tag whose value contains a newline.
- OSVDB ID: 5054: Opera File Tag Newline Arbitrary File Upload
- Opera Opera Browser 6.01 win32
- Opera Opera Browser 6.02 win32
May 27, 2002
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