Security Bulletin
Summary
IBM HTTP Server (powered by Apache) for IBM i is vulnerable to a remote attacker obtaining sensitive information due to ignoring legacy content-type based configuration of handlers [CVE-2024-39884] and improper validation of input [CVE-2024-38476], a bypass of security restrictions due to a flaw in mod_proxy [CVE-2024-38473], and a server-side request forgery due to a flaw in the mod_rewrite [CVE-2024-39573] as described in the vulnerability details section. This bulletin identifies the steps to take to address the vulnerabilities as described in the remediation/fixes section.
Vulnerability Details
CVEID: CVE-2024-39884
DESCRIPTION: Apache HTTP Server allow a remote attacker to obtain sensitive information, caused by a regression in the core related to ignoring some use of the legacy content-type based configuration of handlers. By using AddType, an attacker could exploit this vulnerability resulting in source code disclosure of local content.
CWE: CWE-540: Inclusion of Sensitive Information in Source Code
CVSS Source: IBM X-Force
CVSS Base score: 5.9
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N)
CVEID: CVE-2024-38473
DESCRIPTION: Apache HTTP Server could allow a remote attacker to bypass security restrictions, caused by an encoding flaw in mod_proxy. By sending specially crafted requests with incorrect encoding an attacker could exploit this vulnerability to bypass authentication validation.
CWE: CWE-116: Improper Encoding or Escaping of Output
CVSS Source: IBM X-Force
CVSS Base score: 8.1
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H)
CVEID: CVE-2024-38476
DESCRIPTION: Apache HTTP Server allow a remote attacker to obtain sensitive information, caused by improper input validation by the backend applications response headers. By sending a specially crafted request, an attacker could exploit this vulnerability to obtain sensitive information, perform server-side request forgery attack or local script execution.
CWE: CWE-829: Inclusion of Functionality from Untrusted Control Sphere
CVSS Source: IBM X-Force
CVSS Base score: 5.9
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N)
CVEID: CVE-2024-39573
DESCRIPTION: Apache HTTP Server is vulnerable to server-side request forgery, caused by a flaw in the mod_rewrite. By sending a specially crafted request, an attacker could exploit this vulnerability to cause unsafe RewriteRules to unexpectedly setup URL's to be handled by mod_proxy.
CWE: CWE-20: Improper Input Validation
CVSS Source: IBM X-Force
CVSS Base score: 7.5
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N)
Affected Products and Versions
Affected Product(s) | Version(s) |
IBM i | 7.5 |
IBM i | 7.4 |
IBM i | 7.3 |
IBM i | 7.2 |
Remediation/Fixes
https://www.ibm.com/support/fixcentral
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
None
Get Notified about Future Security Bulletins
References
Acknowledgement
Change History
08 Dec 2024: 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
According to the Forum of Incident Response and Security Teams (FIRST), the Common Vulnerability Scoring System (CVSS) is an "industry open standard designed to convey vulnerability severity and help to determine urgency and priority of response." IBM PROVIDES THE CVSS SCORES ""AS IS"" WITHOUT WARRANTY OF ANY KIND, INCLUDING THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. CUSTOMERS ARE RESPONSIBLE FOR ASSESSING THE IMPACT OF ANY ACTUAL OR POTENTIAL SECURITY VULNERABILITY. In addition to other efforts to address potential vulnerabilities, IBM periodically updates the record of components contained in our product offerings. As part of that effort, if IBM identifies previously unidentified packages in a product/service inventory, we address relevant vulnerabilities regardless of CVE date. Inclusion of an older CVEID does not demonstrate that the referenced product has been used by IBM since that date, nor that IBM was aware of a vulnerability as of that date. We are making clients aware of relevant vulnerabilities as we become aware of them. "Affected Products and Versions" referenced in IBM Security Bulletins are intended to be only products and versions that are supported by IBM and have not passed their end-of-support or warranty date. Thus, failure to reference unsupported or extended-support products and versions in this Security Bulletin does not constitute a determination by IBM that they are unaffected by the vulnerability. Reference to one or more unsupported versions in this Security Bulletin shall not create an obligation for IBM to provide fixes for any unsupported or extended-support products or versions.
Document Location
Worldwide
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Document Information
Modified date:
08 December 2024
UID
ibm17178181