PT-2017-13962 · Opentext · Opentext Documentum Content Server
Andrey B. Panfilov
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Published
2017-10-13
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Updated
2017-11-03
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CVE-2017-15276
CVSS v3.1
8.8
High
| Vector | AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
Name of the Vulnerable Software and Affected Versions
OpenText Documentum Content Server versions through 7.3
Description
The issue allows an authenticated user to gain superuser privileges due to a design gap in the Content Server. This gap enables uploading content using batches, specifically TAR archives. When Content Server unpacks these archives, it fails to verify their contents, leading to a path traversal vulnerability via symlinks. Since some files on the Content Server filesystem are security-sensitive, this vulnerability results in privilege escalation.
Recommendations
For versions through 7.3, consider restricting access to the TAR archive upload feature to minimize the risk of exploitation until a patch is available. As a temporary workaround, implement additional validation on the contents of uploaded TAR archives to prevent path traversal attacks.
Exploit
Fix
Path traversal
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Weakness Enumeration
Related Identifiers
Affected Products
Opentext Documentum Content Server