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CVE-2019-7232

Status Candidate

Overview

The ABB IDAL HTTP server is vulnerable to a buffer overflow when a long Host header is sent in a web request. The Host header value overflows a buffer and overwrites a Structured Exception Handler (SEH) address. An unauthenticated attacker can submit a Host header value of 2047 bytes or more to overflow the buffer and overwrite the SEH address, which can then be leveraged to execute attacker-controlled code on the server.

Related Files

ABB IDAL HTTP Server Stack-Based Buffer Overflow
Posted Jun 24, 2019
Authored by Eldar Marcussen

The IDAL HTTP server is vulnerable to a stack-based buffer overflow when receiving a large host header in a HTTP request. The host header value overflows a buffer and overwrites the Structured Exception Handler (SEH) address with a larger buffer. An unauthenticated attacker can send a Host header value of 2047 bytes or more to overflow the host headers and overwrite the SEH address which can then be leveraged to execute attacker controlled code on the server.

tags | exploit, web, overflow
advisories | CVE-2019-7232
SHA-256 | 2421624e7ad840181ca84c4621cdcea0f08c090f97ea23834ea7b42bf7a3e813
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