CVEs-PoC/2020/CVE-2020-7760.md

CVE-2020-7760

Description

This affects the package codemirror before 5.58.2; the package org.apache.marmotta.webjars:codemirror before 5.58.2. The vulnerable regular expression is located in https://github.com/codemirror/CodeMirror/blob/cdb228ac736369c685865b122b736cd0d397836c/mode/javascript/javascript.jsL129. The ReDOS vulnerability of the regex is mainly due to the sub-pattern (s|/.?/)

POC

Reference

• https://snyk.io/vuln/SNYK-JAVA-ORGAPACHEMARMOTTAWEBJARS-1024450
• https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARS-1024449
• https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSBOWER-1024445
• https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSBOWERGITHUBCODEMIRROR-1024448
• https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSBOWERGITHUBCOMPONENTS-1024446
• https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-1024447
• https://snyk.io/vuln/SNYK-JS-CODEMIRROR-1016937
• https://www.oracle.com//security-alerts/cpujul2021.html
• https://www.oracle.com/security-alerts/cpuApr2021.html
• https://www.oracle.com/security-alerts/cpuapr2022.html

Github

• https://github.com/deepakdba/cve_checklist
• https://github.com/engn33r/awesome-redos-security
• https://github.com/radtek/cve_checklist
• https://github.com/yetingli/PoCs