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CVE-2021-20517

nvd nist
Published: Jun 7, 2021Modified: Jun 17, 2026

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8.8
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Exploitability: 2.8 / Impact: 5.9
Source: NVD

Description

IBM WebSphere Application Server Network Deployment 8.5 and 9.0 could allow a remote authenticated attacker to traverse directories. An attacker could send a specially-crafted URL request containing "dot dot" sequences (/../) to read and delete arbitrary files on the system. IBM X-Force ID: 198435.

Affected (2)

Ibm
1 product
Websphere Application Server Nd
Configuration A
2 vulnerable
Vulnerable SoftwareAffected Versions
Ibm
Websphere Application Server Nd
From 8.5.0.0 to 8.5.5.20
Websphere Application Server Nd
From 9.0.0.0 to 9.0.5.8

Related CWEs

CWE-22
Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.

References (4)

Source: psirt@us.ibm.com
VDB EntryVendor Advisory
Source: psirt@us.ibm.com
PatchVendor Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
VDB EntryVendor Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
PatchVendor Advisory

Timeline

No history available yet.