The Avaya 4602SW IP Phone (Model 4602D02A) with 2.2.2 and earlier SIP firmware does not use the cnonce parameter in the Authorization heade…

The Avaya 4602SW IP Phone (Model 4602D02A) with 2.2.2 and earlier SIP firmware does not use the cnonce parameter in the Authorization header of SIP requests during MD5 digest authentication, which allows remote attackers to conduct man-in-the-middle attacks and hijack or intercept communications.