Stack-based buffer overflow in libupnp - CVE-2012-5961

Detailed vulnerability description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error within the unique_service_name function in ssdp/ssdp_server.c in the SSDP parser when processing a long UDN (aka device) field in a UDP packet. Per CERT's advisory additional products may be affected: http://www.kb.cert.org/vuls/id/922681 "Hundreds of vendors have used the libupnp library in their products, many of which are acting as the home routers for consumer networks. A remote unauthenticated attacker can trigger stack-based buffer overflow and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

How to mitigate CVE-2012-5961

Sources

• http://pupnp.sourceforge.net/ChangeLog
• http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20130129-upnp
• http://tsd.dlink.com.tw/temp/PMD/12879/DSR-500_500N_1000_1000N_A1_Release_Notes_FW_v1.08B77_WW.pdf
• http://tsd.dlink.com.tw/temp/PMD/12960/DSR-150N_A2_Release_Notes_FW_v1.05B64_WW.pdf
• http://tsd.dlink.com.tw/temp/PMD/12966/DSR-150_A1_A2_Release_Notes_FW_v1.08B44_WW.pdf
• http://tsd.dlink.com.tw/temp/PMD/13039/DSR-250_250N_A1_A2_Release_Notes_FW_v1.08B44_WW_RU.pdf
• http://www.debian.org/security/2013/dsa-2614
• http://www.debian.org/security/2013/dsa-2615
• http://www.kb.cert.org/vuls/id/922681
• http://www.mandriva.com/security/advisories?name=MDVSA-2013:098
• http://www.securityfocus.com/bid/57602
• https://community.rapid7.com/community/infosec/blog/2013/01/29/security-flaws-in-universal-plug-and-play-unplug-dont-play
• https://community.rapid7.com/servlet/JiveServlet/download/2150-1-16596/SecurityFlawsUPnP.pdf
• https://community.rapid7.com/servlet/servlet.FileDownload?file=00P1400000cCaFb
• https://wiki.mageia.org/en/Support/Advisories/MGASA-2013-0037