Read beyond bounds in ap_strcmp_match() [zhbug_httpd_47.7]
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原文摘录
摘自原文（7430 字符中的一小部分）
Greetings. I have found a read-beyond-bounds attack against httpd that allows an attacker to search httpd's memory for strings matching an attacker-specified pattern [1]. The attack arises from an overflow in ap_strcmp_match() (server/util.c). [2] The vulnerability can be reached via an LUA program …
原文中的代码
187: AP_DECLARE(int) ap_strcmp_match(const char *str, const char *expected)
188: {
189: int x, y;
190:
191: for (x = 0, y = 0; expected[y]; ++y, ++x) {
192: if (expected[y] == '*') {
193: while (expected[++y] == '*');
194: if (!expected[y])
195: …默认不展示报告全文。以上为简短摘录，完整复现过程请阅读原文。版权归研究员与 Internet Bug Bounty 所有。
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阅读 HackerOne 原文 ↗作者 @tdp3kel9g · 版权归作者与 Internet Bug Bounty 所有