IBM Sametime 8.5 and 9.0 meetings server may provide detailed information in an error message that may provide details about the application to possible attackers. IBM X-Force ID: 113851.

Cross-site scripting (XSS) vulnerability in the Classic Meeting Server in IBM Sametime 8.x through 8.5.2.1 allows remote attackers to inject arbitrary web script or HTML via a crafted URL.

The Classic Meeting Server in IBM Sametime 8.x through 8.5.2.1 allows physically proximate attackers to discover a meeting password hash by leveraging access to an unattended workstation to read HTML source code within a victim's browser.

stconf.nsf in IBM Sametime Meeting Server 8.5.1 relies on the client to validate the file format used in wAttach?OpenForm multipart/form-data POST requests, which allows remote authenticated users to bypass intended upload restrictions by modifying the Content-Type header and file extension, as demonstrated by replacing a text/plain .txt upload with an application/octet-stream .exe upload.

The Meeting Server in IBM Sametime 8.x through 8.5.2.1 and 9.x through 9.0.0.1 does not include the HTTPOnly flag in a Set-Cookie header for an unspecified cookie, which makes it easier for remote attackers to obtain potentially sensitive information via script access to this cookie, a different vulnerability than CVE-2013-3984.

The Meeting Server in IBM Sametime 8.x through 8.5.2.1 and 9.x through 9.0.0.1 allows remote attackers to download avatar photos of arbitrary users via unspecified vectors.

Unspecified vulnerability in the Meeting Server in IBM Sametime 8.x through 8.5.2.1 and 9.x through 9.0.0.1 allows remote attackers to discover user names, full names, and e-mail addresses via a search.

The Meeting Server in IBM Sametime 8.x through 8.5.2.1 and 9.x through 9.0.0.1 does not check whether a session cookie is current, which allows remote attackers to conduct user-search actions by leveraging possession of a (1) expired or (2) invalidated cookie.

The Meeting Server in IBM Sametime 8.x through 8.5.2.1 and 9.x through 9.0.0.1 allows remote attackers to determine which meeting rooms are owned by a user by leveraging knowledge of valid user names.

The Meeting Server in IBM Sametime 8.x through 8.5.2.1 and 9.x through 9.0.0.1 allows remote attackers to cause a denial of service (room unusability) by generating a large number of fictitious users to enter a meeting room.