发布时间 :2000-10-20 00:00:00
修订时间 :2008-09-10 15:05:34

[原文]Netscape Communicator and Navigator 4.04 through 4.74 allows remote attackers to read arbitrary files by using a Java applet to open a connection to a URL using the "file", "http", "https", and "ftp" protocols, as demonstrated by Brown Orifice.

[CNNVD]Netscape Communicator和Navigator文件泄露漏洞(CNNVD-200010-022)

        Netscape Communicator和Navigator 4.04到4.74版本存在漏洞。远程攻击者可以通过使用Java程序打开使用“file”,“http”,“https”,和“ftp”协议的URL连接读取任意文件,正如Brown Orifice。

- CVSS (基础分值)

CVSS分值: 5 [中等(MEDIUM)]
机密性影响: PARTIAL [很可能造成信息泄露]
完整性影响: NONE [不会对系统完整性产生影响]
可用性影响: NONE [对系统可用性无影响]
攻击复杂度: LOW [漏洞利用没有访问限制 ]
攻击向量: [--]
身份认证: NONE [漏洞利用无需身份认证]

- CPE (受影响的平台与产品)

cpe:/a:netscape:communicator:4.04Netscape Communicator 4.04
cpe:/a:netscape:communicator:4.6Netscape Communicator 4.6
cpe:/a:netscape:communicator:4.08Netscape Communicator 4.08
cpe:/a:netscape:communicator:4.5Netscape Communicator 4.5
cpe:/a:netscape:communicator:4.74Netscape Communicator 4.74
cpe:/a:netscape:communicator:4.73Netscape Communicator 4.73
cpe:/a:netscape:communicator:4.07Netscape Communicator 4.07
cpe:/a:netscape:communicator:4.06Netscape Communicator 4.06
cpe:/a:netscape:communicator:4.05Netscape Communicator 4.05
cpe:/a:netscape:communicator:4.72Netscape Communicator 4.72
cpe:/a:netscape:communicator:4.51Netscape Communicator 4.51
cpe:/a:netscape:communicator:4.0Netscape Communicator 4.0
cpe:/a:netscape:communicator:4.61Netscape Communicator 4.61
cpe:/a:netscape:communicator:4.5_betaNetscape Communicator 4.5 BETA

- OVAL (用于检测的技术细节)


- 官方数据库链接
(官方数据源) MITRE
(官方数据源) NVD
(官方数据源) CNNVD

- 其它链接及资源
(UNKNOWN)  SUSE  20000823 Security Hole in Netscape, Versions 4.x, possibly others
(UNKNOWN)  BUGTRAQ  20000821 MDKSA-2000:036 - netscape update
(UNKNOWN)  BUGTRAQ  20000818 Conectiva Linux Security Announcement - netscape
(UNKNOWN)  BUGTRAQ  20000810 MDKSA-2000:033 Netscape Java vulnerability
(UNKNOWN)  BUGTRAQ  20000804 Dangerous Java/Netscape Security Hole

- 漏洞信息

Netscape Communicator和Navigator文件泄露漏洞
中危 未知
2000-10-20 00:00:00 2005-10-12 00:00:00
        Netscape Communicator和Navigator 4.04到4.74版本存在漏洞。远程攻击者可以通过使用Java程序打开使用“file”,“http”,“https”,和“ftp”协议的URL连接读取任意文件,正如Brown Orifice。

- 公告与补丁


- 漏洞信息 (20140)

Netscape Communicator 4.x URL Read Vulnerability (EDBID:20140)
multiple remote
2000-08-03 Verified
0 Dan Brumleve
N/A [点击下载]

A flaw in Netscape Communicator's implementation of Java allows malicious applets to read any resource reachable via a URL from the local machine by using the and classes. This allows malicious applets to read local files as well as download data from hosts that would otherwise could be protected by a firewall.

An untrusted applet normally is no allowed to read or write to the local file system, or to open network connections to any machine other than that from which it was downloaded.. Security sensitive classes such as FileInputStream() , RandomAccessFile(), or Socket() normally check whether a class can read from a local file by calling the SecurityManager.checkRead() method or whether it connect to other hosts by calling the SecurityManager.checkConnect() method.

Netscape's and classes seem to ignore or not perform these checks when passed an URLs. Thus malicious classes and read local files using URLs of the type "file://".

If the machine running the malicious applet is behind a firewall it will also be able to download resources that can be accessed via a URL, such as web server ("http://" or "https://) or FTP servers ("ftp://"), that the attacker in control of the machine from which the applet was downloaded could not. In this way a malicious applet could be used to penetrate a firewall.		

- 漏洞信息

Netscape Multiple Protocol Java Applet File Disclosure
Context Dependent Information Disclosure
Loss of Confidentiality Upgrade
Exploit Public Vendor Verified, Third-party Verified

- 漏洞描述

- 时间线

2000-08-04 Unknow
Unknow Unknow

- 解决方案

Upgrade to version 4.75 or higher, as it has been reported to fix this vulnerability. An upgrade is required as there are no known workarounds.

- 相关参考

- 漏洞作者

Unknown or Incomplete