CVE-2002-0333
CVSS5.0
发布时间 :2002-06-25 00:00:00
修订时间 :2016-10-17 22:19:21
NMCOES    

[原文]Directory traversal vulnerability in xtell (xtelld) 1.91.1 and earlier, and 2.x before 2.7, allows remote attackers to read files with short names, and local users to read more files using a symlink with a short name, via a .. in the TTY argument.


[CNNVD]信任TTY的xtell设备名称远程漏洞(CNNVD-200206-096)

        xtell (xtelld) 1.91.1版本及之前版本,以及2.x 2.7之前版本存在目录遍历漏洞。远程攻击者可以借助TTY参数中的..读取带有短名称的文件,并且本地用户可以通过使用带有短名称的符号链接读取更多的文件。

- CVSS (基础分值)

CVSS分值: 5 [中等(MEDIUM)]
机密性影响: [--]
完整性影响: [--]
可用性影响: [--]
攻击复杂度: [--]
攻击向量: [--]
身份认证: [--]

- CPE (受影响的平台与产品)

cpe:/a:xtell:xtell:1.91.1
cpe:/a:xtell:xtell:2.6.1

- OVAL (用于检测的技术细节)

未找到相关OVAL定义

- 官方数据库链接

http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2002-0333
(官方数据源) MITRE
http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2002-0333
(官方数据源) NVD
http://www.cnnvd.org.cn/vulnerability/show/cv_cnnvdid/CNNVD-200206-096
(官方数据源) CNNVD

- 其它链接及资源

http://marc.info/?l=bugtraq&m=101494896516467&w=2
(UNKNOWN)  BUGTRAQ  20020227 Remote exploit against xtelld and other fun
http://www.debian.org/security/2002/dsa-121
(VENDOR_ADVISORY)  DEBIAN  DSA-121
http://www.iss.net/security_center/static/8313.php
(VENDOR_ADVISORY)  XF  xtell-tty-directory-traversal(8313)
http://www.securityfocus.com/bid/4194
(VENDOR_ADVISORY)  BID  4194

- 漏洞信息

信任TTY的xtell设备名称远程漏洞
中危 路径遍历
2002-06-25 00:00:00 2005-10-20 00:00:00
远程  
        xtell (xtelld) 1.91.1版本及之前版本,以及2.x 2.7之前版本存在目录遍历漏洞。远程攻击者可以借助TTY参数中的..读取带有短名称的文件,并且本地用户可以通过使用带有短名称的符号链接读取更多的文件。

- 公告与补丁

        Currently the SecurityFocus staff are not aware of any vendor-supplied patches for this issue. If you feel we are in error or are aware of more recent information, please mail us at: vuldb@securityfocus.com .
        xtell xtell 1.91.1
        

- 漏洞信息 (21310)

xtell 2.6.1 User Status Remote Information Disclosure Vulnerability (EDBID:21310)
linux remote
2002-02-27 Verified
0 spybreak
N/A [点击下载]
source: http://www.securityfocus.com/bid/4196/info

xtell is a simple network messaging program. It may be used to transmit terminal messages between users and machines. xtell is available for Linux, BSD and most other Unix based operating systems.

An information disclosure vulnerability has been reported in some versions of xtell. When a message is sent to a user, the response generated by xtell states whether that user is currently logged on to the system. An attacker may be able to use this information to aid in additional attacks, or in social engineering attempts.

It is possible to send a maliciously formatted message to xtell such that this information is disclosed, yet no message is displayed or logged. This may allow the attack to go undetected.

Earlier versions of xtell may share this vulnerability. This has not been confirmed. 

echo :USER::`perl -e 'print "A" x 2000'`| nc victimhost 4224 		

- 漏洞信息

9049
xtell TTY Argument Arbitrary File Access
Remote / Network Access Information Disclosure
Loss of Confidentiality Solution Unknown
Exploit Public Third-party Verified, Uncoordinated Disclosure

- 漏洞描述

- 时间线

2002-02-27 Unknow
2002-02-27 Unknow

- 解决方案

OSVDB is not aware of a solution for this vulnerability.

- 相关参考

- 漏洞作者

Unknown or Incomplete

- 漏洞信息

xtell Trusted TTY Device Name Remote Vulnerability
Input Validation Error 4194
Yes No
2002-02-27 12:00:00 2009-07-11 10:56:00
Discovered by "Spybreak" <spybreak@host.sk>.

- 受影响的程序版本

xtell xtell 2.6.1
xtell xtell 1.91.1
+ Debian Linux 2.2

- 漏洞讨论

xtell is a simple network messaging program. It may be used to transmit terminal messages between users and machines. xtell is available for Linux, BSD and most other Unix based operating systems.

xtell accepts untrusted user input as the TTY device to write to. In addition to specifying arbitrary devices, it is possible to mount a '../' directory traversal against arbitrary files. The value supplied as a device name is restricted to eight characters.

It may also be possible to exhaust available disk space by specifying a mundane file instead of a device name.

Earlier versions of xtell may share this vulnerability. This has not been confirmed.

- 漏洞利用

No exploit is required.

- 解决方案

Currently the SecurityFocus staff are not aware of any vendor-supplied patches for this issue. If you feel we are in error or are aware of more recent information, please mail us at: vuldb@securityfocus.com <mailto:vuldb@securityfocus.com>.


xtell xtell 1.91.1

- 相关参考

 

 

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