Incorrect Regular Expression in Prototype JavaScript Framework - CVE-2020-27511
Published: February 2, 2023
Vulnerability identifier: #VU71773
CSH Severity: Low
CVSS v4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]
CVE-ID: CVE-2020-27511
CWE-ID: CWE-185
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to insufficient input validation in the stripTags and unescapeHTML components. A remote attacker can pass specially crafted data to the application and perform regular expression denial of service (ReDos) attack.
Affected software
Prototype JavaScript Framework
magento-lts
IBM Aspera Orchestrator
IBM Sterling B2B Integrator
magento-lts
IBM Aspera Orchestrator
IBM Sterling B2B Integrator
How to mitigate CVE-2020-27511
Install update from vendor's website.
magento-lts - addressed in versions 19.4.23, 20.0.20
IBM Aspera Orchestrator - update to 4.0.1 PL2
IBM Sterling B2B Integrator - addressed in versions 6.1.2.6, 6.2.0.4
IBM Aspera Orchestrator - update to 4.0.1 PL2
IBM Sterling B2B Integrator - addressed in versions 6.1.2.6, 6.2.0.4