Security Bulletin: App Connect Enterprise Certified Container may be vulnerable to buffer overflows, Denial of Service or HTTP request smuggling

Summary

App Connect Enterprise Certified Container when running Desginer flows may be vulnerable to Denial of Service via to CVE-2020-8237, HTTP request smuggling via CVE-2020-8201 or buffer overflows via CVE-2020-8252.

Vulnerability Details

CVEID:CVE-2020-8237
**DESCRIPTION:**Node.js json-bigint module is vulnerable to a denial of service, caused by a prototype pollution flaw. By adding or modifying Object properties, a remote attacker could exploit this vulnerability cause a denial of service condition.
CVSS Base score: 7.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/188526 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)

CVEID:CVE-2020-8201
**DESCRIPTION:**Node.js is vulnerable to HTTP request smuggling, caused by CR-to-Hyphen conversion. By sending specially crafted HTTP request headers, an attacker could exploit this vulnerability to poison the web cache, bypass web application firewall protection, and conduct XSS attacks.
CVSS Base score: 7.4
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/188591 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N)

CVEID:CVE-2020-8252
**DESCRIPTION:**Node.js is vulnerable to a buffer overflow, caused by improper bounds checking by the libuv’s fs.realpath.native. By sending an overly long argument, a remote attacker could overflow a buffer and execute arbitrary code on the system or cause a denial of service.
CVSS Base score: 7.3
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/188593 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L)

Affected Products and Versions

Remediation/Fixes

Upgrade to App Connect Enterprise Certified Container to Operator version 1.1.0 (available in CASE 1.1.0) or higher, and ensure that all components are upgraded to 11.0.0.10-r3 or higher.

Workarounds and Mitigations

None