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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
Codecov Report
@@ Coverage Diff @@
## master #6254 +/- ##
============================================
- Coverage 60.87% 60.83% -0.05%
+ Complexity 494 492 -2
============================================
Files 999 999
Lines 39933 39933
Branches 5752 5752
============================================
- Hits 24308 24292 -16
- Misses 12926 12934 +8
- Partials 2699 2707 +8 Continue to review full report at Codecov.
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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