游客您好，欢迎来到黑客世界论坛！您可以在这里进行注册。

赤队小组-代号1949（原CHT攻防小组）在这个瞬息万变的网络时代，我们保持初心，创造最好的社区来共同交流网络技术。您可以在论坛获取黑客攻防技巧与知识，您也可以加入我们的Telegram交流群 共同实时探讨交流。论坛禁止各种广告，请注册用户查看我们的使用与隐私策略，谢谢您的配合。小组成员可以获取论坛隐藏内容！

TheHackerWorld官方

Apple macOS/iOS - NSUnarchiver Heap Corruption Due to Lack of Bounds Checking in [NSBuiltinCharacterSet initWithCoder:]

Multiple,dos,CVE-2017-2523CVE-HT207798CVE-HT207797

发布于2022年11月4日3年前

Source: https://bugs.chromium.org/p/project-zero/issues/detail?id=1170

Via NSUnarchiver we can read NSBuiltinCharacterSet with a controlled serialized state.
It reads a controlled int using decodeValueOfObjCType:"i" then either passes it to
CFCharacterSetGetPredefined or uses it directly to manipulate __NSBuiltinSetTable.
Neither path has any bounds checking and the index is used to maniupulate c arrays of pointers.

Attached python script will generate a serialized NSBuiltinCharacterSet with a value of 42
for the character set identifier.

tested on MacOS 10.12.3 (16D32)


Proof of Concept:
https://github.com/offensive-security/exploitdb-bin-sploits/raw/master/bin-sploits/42050.zip