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https://help.aliyun.com/noticelist/articleid/1060343604.html?spm=a2c4g.789004748.n2.6.3f576141SGmGhG
漏洞描述
fastjson采用黑白名单的方法来防御反序列化漏洞,导致当黑客不断发掘新的反序列化Gadgets类时,在autoType关闭的情况下仍然可能可以绕过黑白名单防御机制,造成远程命令执行漏洞。经研究,该漏洞利用门槛较低,可绕过autoType限制,风险影响较大。阿里云应急响应中心提醒fastjson用户尽快采取安全措施阻止漏洞攻击。
影响版本
fastjson <=1.2.68
fastjson sec版本 <= sec9
安全版本
fastjson >=1.2.69
fastjson sec版本 >= sec10