Security Bulletin: IBM i components are vulnerable to data access due to CVE-2022-22481

Security Bulletin

Summary

IBM Navigator for i - heritage version GUI is vulnerable to data access as described in the vulnerability details section. IBM has addressed the vulnerability for IBM Navigator for i - heritage version with a fix as described in the remediation/fixes section.

Vulnerability Details

CVEID: CVE-2022-22481
DESCRIPTION: IBM Navigator for i (heritage version) could allow a remote attacker to obtain access to the web interface without valid credentials. By modifying the sign on request, an attacker can gain visibility to the fully qualified domain name of the target system and the navigator tasks page, however they do not gain the ability to perform those tasks on the system or see any specific system data.
CVSS Base score: 3.7
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/225899 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N)

Affected Products and Versions

Affected Product(s)	Version(s)
IBM Navigator for i (heritage version only)	IBM i 7.4, 7.3, and 7.2 (heritage version)

Remediation/Fixes

It is strongly recommended that IBM Navigator for i - heritage version not be used due to other vulnerabilities as documented in this security bulletin: https://www.ibm.com/support/pages/node/6539162

The fix documented in that security bulletin disables IBM Navigator for i - heritage version however if there are key features required, heritage Navigator can be enabled and started temporarily at your own risk.

If starting heritage Navigator, IBM recommends addressing the vulnerability described in this bulletin by applying additional fixes.

This issue can be fixed by applying PTFs to IBM i. The IBM i PTF numbers containing the fix for the CVE:

IBM i Release	5770-SS1 PTF Number	PTF Download Link
7.4	SI79557 SI79558	https://www.ibm.com/support/pages/ptf/SI79557 https://www.ibm.com/support/pages/ptf/SI79558
7.3	SI79559 SI79560	https://www.ibm.com/support/pages/ptf/SI79559 https://www.ibm.com/support/pages/ptf/SI79560
7.2	SI79561 SI79562	https://www.ibm.com/support/pages/ptf/SI79561 https://www.ibm.com/support/pages/ptf/SI79562

Statement of direction - IBM intends in the future to remove IBM Navigator for i heritage version by deleting all associated files from the system for IBM i 7.3 & 7.4 releases.

Important note: IBM recommends that all users running unsupported versions of affected products upgrade to supported and fixed version of affected products.

Workarounds and Mitigations

Disable IBM Navigator for i - heritage version

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References

Complete CVSS v3 Guide
On-line Calculator v3

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Acknowledgement

The vulnerability was reported to IBM by Mohamed Shaban

Change History

06 May 2022: Initial Publication

*The CVSS Environment Score is customer environment specific and will ultimately impact the Overall CVSS Score. Customers can evaluate the impact of this vulnerability in their environments by accessing the links in the Reference section of this Security Bulletin.

Disclaimer

Review the IBM security bulletin disclaimer and definitions regarding your responsibilities for assessing potential impact of security vulnerabilities to your environment.

Document Location

Worldwide

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Tips

Security Bulletin: IBM i components are vulnerable to data access due to CVE-2022-22481