Novell Groupwise WebAccess GWINTER.EXE远程栈缓冲区溢出漏洞

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漏洞ID 1190886 漏洞类型 缓冲区溢出
发布时间 2007-04-18 更新时间 2007-04-24
CVE编号 CVE-2007-2171 CNNVD-ID CNNVD-200704-412
漏洞平台 N/A CVSS评分 10.0
|漏洞来源
https://www.securityfocus.com/bid/23556
https://cxsecurity.com/issue/WLB-2007040117
http://www.cnnvd.org.cn/web/xxk/ldxqById.tag?CNNVD=CNNVD-200704-412
|漏洞详情
NovellGroupwiseWebAccess是一款基于WEB的邮件、日程表、通讯录解决方案。WebAccess中默认绑定到TCP7205和7211端口上的GWINTER.exe进程存在栈溢出漏洞,远程攻击者可能利用此漏洞控制服务器。在处理HTTPBasic认证请求时这个进程会将用户提供的base64数据拷贝到固定长度的栈缓冲区,由于base64_decode()调用中的漏洞攻击者发送336字节就可以触发栈溢出,导致执行任意指令。
|漏洞EXP
ZDI-07-015: Novell Groupwise WebAccess Base64 Decoding Stack Overflow
            Vulnerability
http://www.zerodayinitiative.com/advisories/ZDI-07-015.html
April 18, 2007

-- CVE ID:
CVE-2007-2171

-- Affected Vendor:
Novell

-- Affected Products:
Groupwise WebAccess

-- TippingPoint(TM) IPS Customer Protection:
TippingPoint IPS customers have been protected against this
vulnerability since April 19, 2007 by Digital Vaccine protection
filter ID 5295. For further product information on the TippingPoint IPS:

http://www.tippingpoint.com

-- Vulnerability Details:
This vulnerability allows remote attackers to execute arbitrary code on
vulnerable installations of Novell Groupwise WebAccess. Authentication
is not required to exploit this vulnerability.

The specific flaw exists in the GWINTER.exe process bound by default on
TCP ports 7205 and 7211. During the handling of an HTTP Basic
authentication request, the process copies user-supplied base64 data
into a fixed length stack buffer. Sending at least 336 bytes will
trigger a stack based buffer overflow due to a vulnerable
base64_decode() call. Exploitation of this issue can result in
arbitrary code execution.

-- Vendor Response:
Novell has issued an update to correct this vulnerability. More details
can be found at:

http://download.novell.com/Download?buildid=8RF83go0nZg~
    http://download.novell.com/Download?buildid=O9ucpbS1bK0~

-- Disclosure Timeline:
2007.03.19 - Vulnerability reported to vendor
2007.04.18 - Coordinated public release of advisory
2007.04.19 - Digital Vaccine released to TippingPoint customers

-- Credit:
This vulnerability was discovered by Tenable Network Security.

-- About the Zero Day Initiative (ZDI):
Established by TippingPoint, a division of 3Com, The Zero Day Initiative
(ZDI) represents a best-of-breed model for rewarding security
researchers for responsibly disclosing discovered vulnerabilities.

Researchers interested in getting paid for their security research
through the ZDI can find more information and sign-up at:

http://www.zerodayinitiative.com

The ZDI is unique in how the acquired vulnerability information is used.
3Com does not re-sell the vulnerability details or any exploit code.
Instead, upon notifying the affected product vendor, 3Com provides its
customers with zero day protection through its intrusion prevention
technology. Explicit details regarding the specifics of the
vulnerability are not exposed to any parties until an official vendor
patch is publicly available. Furthermore, with the altruistic aim of
helping to secure a broader user base, 3Com provides this vulnerability
information confidentially to security vendors (including competitors)
who have a vulnerability protection or mitigation product.
|受影响的产品
Novell Groupwise 7.0 Novell Groupwise 7.0.0 SP1
|参考资料

来源:download.novell.com
链接:http://download.novell.com/Download?buildid=O9ucpbS1bK0~
来源:download.novell.com
链接:http://download.novell.com/Download?buildid=8RF83go0nZg~
来源:MISC
链接:http://www.zerodayinitiative.com/advisories/ZDI-07-015.html
来源:SECTRACK
名称:1017932
链接:http://www.securitytracker.com/id?1017932
来源:BID
名称:23556
链接:http://www.securityfocus.com/bid/23556
来源:BUGTRAQ
名称:20070418ZDI-07-015:NovellGroupwiseWebAccessBase64DecodingStackOverflowVulnerability
链接:http://www.securityfocus.com/archive/1/archive/1/466212/100/0/threaded
来源:VUPEN
名称:ADV-2007-1455
链接:http://www.frsirt.com/english/advisories/2007/1455
来源:SECUNIA
名称:24944
链接:http://secunia.com/advisories/24944
来源:SREASON
名称:2610
链接:http://securityreason.com/securityalert/2610