Security Bulletin
Summary
IBM has addressed the following CVEs that affect the APIC Gateway Service.
Vulnerability Details
CVEID: CVE-2021-22959
DESCRIPTION: Node.js is vulnerable to HTTP request smuggling, caused by an error related to a space in headers. A remote attacker could send a specially-crafted request with a space (SP) right after the header name before the colon to lead to HTTP Request Smuggling (HRS). An attacker could exploit this vulnerability to poison the web cache, bypass web application firewall protection, and conduct XSS attacks.
CVSS Base score: 6.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/211168 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N)
CVEID: CVE-2021-22960
DESCRIPTION: Node.js is vulnerable to HTTP request smuggling, caused by an error when parsing the body of chunked requests. A remote attacker could send a specially-crafted request to lead to HTTP Request Smuggling (HRS). An attacker could exploit this vulnerability to poison the web cache, bypass web application firewall protection, and conduct XSS attacks.
CVSS Base score: 6.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/211171 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N)
Affected Products and Versions
| Affected Product(s) | Version(s) |
| IBM DataPower Gateway V10CD | 10.0.2.0, 10.0.3.0 |
| IBM DataPower Gateway 10.0.1 | 10.0.1.0, 10.0.1.1, 10.1.1.2, 10.0.1.3, 10.0.1.4, 10.0.1.5 |
Remediation/Fixes
Fix appears in IBM DataPower Gateway versions 10.0.4.0 and 10.0.1.6. APAR: IT39615
Workarounds and Mitigations
Configure TLS between APIM and the IBM DataPower Gateway to use client-certificate authentication (see https://www.ibm.com/docs/en/datapower-gateway/10.0.1?topic=connect-configuring-api-gateway-service). Specify a valcred that will validate only the certificate(s) configured for APIM.
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References
Change History
02 Mar 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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Document Information
Modified date:
02 March 2022
UID
ibm16560728