An anonymous reader writes: It's been almost two years since Michael Lynn demonstrated a reliable code execution exploit on Cisco IOS. Although his presentation received a lot of media coverage in the security community, very little is known about the attack and the technical details surrounding the IOS check_heaps() vulnerability. This paper is a result of research carried out by IRM to analyse and understand the check_heaps() attack and its impact on similar embedded devices. Furthermore, it also helps developers understand security-specific issues in embedded environments and developing mitigation strategies for similar vulnerabilities.
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