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Security Bulletin: Multiple vulnerabilities in Apache HTTP Server affect Rational Build Forge (CVE-2019-9517, CVE-2019-10081, CVE-2019-10082, CVE-2019-10092, CVE-2019-10097, CVE-2019-10098)

Created by Ramanath Shanbhag on
Published URL:
https://www.ibm.com/support/pages/node/1075233
1075233

Security Bulletin


Summary

There are multiple vulnerabilities in Apache HTTP Server affecting IBM Rational Build Forge.

Vulnerability Details

CVEID: CVE-2019-9517
DESCRIPTION: Multiple vendors are vulnerable to a denial of service, caused by an Internal Data Buffering attack. By opening the HTTP/2 window so the peer can send without constraint and sending a stream of requests for a large response object, a remote attacker could consume excessive CPU resources.
CVSS Base Score: 7.5
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/165183 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)

CVEID: CVE-2019-10097
DESCRIPTION: Apache HTTP Server is vulnerable to a denial of service, caused by a stack-based buffer overflow and a NULL pointer dereference in the mod_remoteip module. By sending a specially crafted PROXY header, a remote attacker could exploit this vulnerability to overflow a buffer and cause a denial of service.
CVSS Base Score: 5.6
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/165365 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L)

 

CVEID: CVE-2019-10081
DESCRIPTION: Apache HTTP Server is vulnerable to a denial of service, caused by a memory corruption on early pushes in the mod_http2 module. By sending a specially crafted request, a remote attacker could exploit this vulnerability to cause a crash.
CVSS Base Score: 5.3
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/165369 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L)

CVEID: CVE-2019-10092
DESCRIPTION: Apache HTTP Server is vulnerable to cross-site scripting, caused by improper validation of user-supplied input by the mod_proxy error page. A remote attacker could cause the link on the error page to be malfomed and instead point to a page of their choice. An attacker could use this vulnerability to steal the victim''s cookie-based authentication credentials.
CVSS Base Score: 4.7
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/165367 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:N)

CVEID: CVE-2019-10082
DESCRIPTION: Apache HTTP Server could allow a remote attacker to obtain sensitive information, caused by a read-after-free in the mod_http2 module during connection shutdown. By sending specially crafted input, a remote attacker could exploit this vulnerability to obtain sensitive information.
CVSS Base Score: 5.3
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/165368 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N)

CVEID: CVE-2019-10098
DESCRIPTION: Apache HTTP Server could allow a remote attacker to conduct phishing attacks, caused by an open redirect vulnerability in the mod_rewrite module. An attacker could exploit this vulnerability using a specially-crafted URL to redirect a victim to arbitrary Web sites.
CVSS Base Score: 3.7
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/165366 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N)

Affected Products and Versions

Affected versions: Build Forge 8.0 - 8.0.0.12

Remediation/Fixes

Apply the correct fix pack or iFix for your version of Build Forge:

Affected Version Fix
Build Forge 8.0 - 8.0.0.12 Rational Build Forge 8.0.0.13 Download.

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

Acknowledgement

None

Change History

30 SEPTEMBER 2018: Original version published

*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.

Internal Use Only

PSIRT Advisory 17572, Record 142419;  PSIRT Advisory 17582, Record 142506.

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Document Information

Modified date:
30 September 2019

UID

ibm11075233

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