IBM WebSphere Application Server 8.0.0.0 <= 8.0.0.15 / 8.5.0.0 <= 8.5.5.19 / 9.0.0.0 <= 9.0.5.6 Directory Traversal (CVE-2021-20354)

high Nessus Plugin ID 146859
New! Vulnerability Priority Rating (VPR)

Tenable calculates a dynamic VPR for every vulnerability. VPR combines vulnerability information with threat intelligence and machine learning algorithms to predict which vulnerabilities are most likely to be exploited in attacks. Read more about what VPR is and how it is different from CVSS.

VPR Score: 3.6

Synopsis

The remote web application server is affected by a directory traversal vulnerability

Description

The IBM WebSphere Application Server running on the remote host is version 8.0.x through 8.0.0.15, 8.5.x through 8.5.5.19 or 9.0.x through 9.0.5.6. It is, therefore, affected by a directory traversal vulnerability due to insufficient user input validation. An unauthenticated, remote attacker can exploit this, by sending a URI that contains directory traversal characters, to disclose the contents of files located outside of the server's restricted path.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

Upgrade to IBM WebSphere Application Server 8.5.5.20, 9.0.5.7, or later. Alternatively, upgrade to the minimal fix pack levels required by the interim fix and then apply Interim Fix PH33648.

See Also

https://www.ibm.com/support/pages/node/6415959

Plugin Details

Severity: High

ID: 146859

File Name: websphere_6415959.nasl

Version: 1.3

Type: combined

Agent: windows, macosx, unix

Family: Web Servers

Published: 2/25/2021

Updated: 2/26/2021

Dependencies: websphere_detect.nasl, ibm_enum_products.nbin, ibm_websphere_application_server_nix_installed.nbin

Risk Information

Risk Factor: High

VPR Score: 3.6

CVSS Score Source: CVE-2021-20354

CVSS v2.0

Base Score: 7.8

Temporal Score: 5.8

Vector: AV:N/AC:L/Au:N/C:C/I:N/A:N

Temporal Vector: E:U/RL:OF/RC:C

CVSS v3.0

Base Score: 7.5

Temporal Score: 6.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Temporal Vector: E:U/RL:O/RC:C

Vulnerability Information

CPE: cpe:/a:ibm:websphere_application_server

Required KB Items: installed_sw/IBM WebSphere Application Server

Exploit Ease: No known exploits are available

Patch Publication Date: 2/17/2021

Vulnerability Publication Date: 2/17/2021

Reference Information

CVE: CVE-2021-20354

IAVA: 2021-A-0104