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Security Bulletin: Vulnerability in Apache HTTP (CVE-2018-17199 and CVE-2020-11993) affects HMC

Security Bulletin


Summary

Apache HTTP is used by Power Hardware Management Console (HMC). HMC has addressed the applicable CVE's.

Vulnerability Details

CVEID:   CVE-2018-17199
DESCRIPTION:   Apache HTTP Server could allow a remote attacker to bypass security restrictions, caused by checking the session expiry time before decoding the session by mod_session. An attacker could exploit this vulnerability to ignore session expiry time and gain access to the application.
CVSS Base score: 5.3
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/156006 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N)

CVEID:   CVE-2020-11993
DESCRIPTION:   Apache HTTP Server is vulnerable to a denial of service, caused by a flaw when trace/debug enabled for the HTTP/2 module and on certain traffic edge patterns. By sending a specially-crafted HTTP/2 Header, a remote attacker could exploit this vulnerability to cause the application to crash.
CVSS Base score: 7.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/186405 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)

Affected Products and Versions

Affected Product(s) Version(s)
HMC V10.1.1010.0 V10.1.1010.0
HMC V9.2.950.0 V9.2.950.0

Remediation/Fixes

 

Remediation/Fixes

  The following fixes are available on IBM Fix Central at: http://www-933.ibm.com/support/fixcentral/

Product
VRMF
APAR
Remediation/Fix
Power HMC
V9.2.952.0 ppc
MB04300
Power HMC
V9.2.952.0 x86
MB04299
Power HMC
V10.1.1010.0 ppc
MB04291
Power HMC
V10.1.1010.0 x86
MB04294

Workarounds and Mitigations

None

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References

Complete CVSS v3 Guide
On-line Calculator v3

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Related Information

IBM Secure Engineering Web Portal
IBM Product Security Incident Response Blog

Change History

22 Nov 2021: 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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Document Information

Modified date:
22 November 2021

UID

ibm16518314

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