Oracle9i Application Server ModPL/SQL double decoding directory traversal
| oracle-appserver-modplsql-traversal (7728) |  Medium Risk |
Description:
Oracle9i Application Server could allow a remote attacker to traverse directories on the Web server. This directory traversal capability is caused by a vulnerability in the PL/SQL Apache Web module. A remote attacker can send a specially-crafted URL request containing hexadecimal URL double encoded "dot dot" sequences (%252F..%252F) for a help file to traverse directories and view arbitrary files on the server.
Consequences:
Obtain Information
Remedy:
Apply patch number 2128936, available from the Oracle MetaLink Web site. See References.
References:
- CERT Advisory CA-2002-08: Multiple vulnerabilities in Oracle Servers.
- NGSSoftware Insight Security Research Advisory #NISR20122001: Oracle PL/SQL Apache Module.
- Oracle MetaLink Web site: Welcome to OracleMetaLink.
- Oracle Security Alert #25: Vulnerabilities in MODPLSQL.
- BID-3727: Oracle 9I Application Server PL/SQL Apache Module Directory Traversal Vulnerability
- CVE-2001-1217: Directory traversal vulnerability in PL/SQL Apache module in Oracle Oracle 9i Application Server allows remote attackers to access sensitive information via a double encoded URL with .. (dot dot) sequences.
- OSVDB ID: 711: Oracle Application Server mod_plsql Encoded Traversal Arbitrary File Access
- US-CERT VU#758483: Oracle9i Application Server Apache PL/SQL module does not properly decode URL
Platforms Affected:
- Oracle Application Server 9i
Reported:
Dec 21, 2001
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