CVE-2021-20354

Websphere Application Server vulnerability

CVSS

7.5

EPSS

3.7%

EPSS pct

89th

Exploited

No known

IBM WebSphere Application Server 8.0, 8.5, and 9.0 could allow a remote attacker to traverse directories. An attacker could send a specially-crafted URL request containing "dot dot" sequences (/../) to view arbitrary files on the system. IBM X-Force ID: 194883.

Affected vendor

Ibm

Affected product

Websphere Application Server

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Weakness type (CWE)

CWE-22 — Path Traversal

Published

2021-02-18

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, low attack complexity, requiring no privileges, no user interaction. Successful exploitation leads to high impact to confidentiality.

Its EPSS score of 3.7% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 89% of all scored CVEs.

Check your external exposure to CVE-2021-20354

Confirm whether Ibm Websphere Application Server is running on any internet-facing host or subdomain.
Match discovered service fingerprints against the version affected by CVE-2021-20354.
Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2021-20354

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