Weekly Vulnerabilities Reports > October 29 to November 4, 2001

Vulnerability in (1) Microsoft Excel 2002 and earlier and (2) Microsoft PowerPoint 2002 and earlier allows attackers to bypass macro restrictions and execute arbitrary commands by modifying the data stream in the document.

The rendering engine in Internet Explorer determines the MIME type independently of the type that is specified by the server, which allows remote servers to automatically execute script which is placed in a file whose MIME type does not normally support scripting, such as text (.txt), JPEG (.jpg), etc.

Internet Explorer 6 and earlier allows remote attackers to cause certain HTTP requests to be automatically executed and appear to come from the user, which could allow attackers to gain privileges or execute operations within web-based services, aka the "HTTP Request Encoding vulnerability."

Internet Explorer 5.5 and 5.01 allows remote attackers to bypass security restrictions via malformed URLs that contain dotless IP addresses, which causes Internet Explorer to process the page in the Intranet Zone, which may have fewer security restrictions, aka the "Zone Spoofing vulnerability."

Example applications (Exampleapps) in ColdFusion Server 4.x do not properly restrict prevent access from outside the local host's domain, which allows remote attackers to conduct upload, read, or execute files by spoofing the "HTTP Host" (CGI.Host) variable in (1) the "Web Publish" example script, and (2) the "Email" example script.

Format string vulnerabilities in (1) _probuild, (2) _dbutil, (3) _mprosrv, (4) _mprshut, (5) _proapsv, (6) _progres, (7) _proutil, (8) _rfutil and (9) prolib in Progress database 9.1C allows a local user to execute arbitrary code via format string specifiers in the file used by the PROMSGS environment variable.

Heap overflow in xlock in Solaris 2.6 through 8 allows local users to gain root privileges via a long (1) XFILESEARCHPATH or (2) XUSERFILESEARCHPATH environmental variable.

RPC endpoint mapper in Windows NT 4.0 allows remote attackers to cause a denial of service (loss of RPC services) via a malformed request.

Outlook Web Access (OWA) in Microsoft Exchange 5.5, SP4 and earlier, allows remote attackers to identify valid user email addresses by directly accessing a back-end function that processes the global address list (GAL).

IIS 4.0 with URL redirection enabled allows remote attackers to cause a denial of service (crash) via a malformed request that specifies a length that is different than the actual length.

Memory leak in Terminal servers in Windows NT and Windows 2000 allows remote attackers to cause a denial of service (memory exhaustion) via a large number of malformed Remote Desktop Protocol (RDP) requests to port 3389.

Multiple memory leaks in Microsoft Services for Unix 2.0 allow remote attackers to cause a denial of service (memory exhaustion) via a large number of malformed requests to (1) the Telnet service, or (2) the NFS service.

Buffer overflow in Compaq Management Agents before 5.2, included in Compaq Web-enabled Management Software, allows local users to gain privileges.

Sendmail before 8.12.1 does not properly drop privileges when the -C option is used to load custom configuration files, which allows local users to gain privileges via malformed arguments in the configuration file whose names contain characters with the high bit set, such as (1) macro names that are one character long, (2) a variable setting which is processed by the setoption function, or (3) a Modifiers setting which is processed by the getmodifiers function.

Sendmail before 8.12.1, without the RestrictQueueRun option enabled, allows local users to obtain potentially sensitive information about the mail queue by setting debugging flags to enable debug mode.

Sendmail before 8.12.1, without the RestrictQueueRun option enabled, allows local users to cause a denial of service (data loss) by (1) setting a high initial message hop count option (-h), which causes Sendmail to drop queue entries, (2) via the -qR option, or (3) via the -qS option.

Outlook Web Access (OWA) in Microsoft Exchange 2000 allows an authenticated user to cause a denial of service (CPU consumption) via a malformed OWA request for a deeply nested folder within the user's mailbox.

IIS 5.0 allows local users to cause a denial of service (hang) via by installing content that produces a certain invalid MIME Content-Type header, which corrupts the File Type table.