Description
TightVNC before 1.2.6 generates the same challenge string for multiple connections, which allows remote attackers to bypass VNC authentication by sniffing the challenge and response of other users.
Affected products
- tightvnc / tightvnc1.2.0 – 1.2.0
- tightvnc / tightvnc1.2.1 – 1.2.1
- tightvnc / tightvnc1.2.3 – 1.2.3
- tightvnc / tightvnc1.2.4 – 1.2.4
- tightvnc / tightvnc1.2.5 – 1.2.5
References
- MISChttps://exchange.xforce.ibmcloud.com/vulnerabilities/5992
- MISChttp://www.redhat.com/support/errata/RHSA-2002-287.html
- MAILING_LISThttp://marc.info/?l=bugtraq&m=102753170201524&w=2
- MISChttp://www.redhat.com/support/errata/RHSA-2003-041.html
- VENDOR_ADVISORYhttp://www.mandrakesoft.com/security/advisories?name=MDKSA-2003:022
- MISChttp://distro.conectiva.com.br/atualizacoes/?id=a&anuncio=000640
- MISChttp://www.tightvnc.com/WhatsNew.txt
- MAILING_LISThttp://marc.info/?l=bugtraq&m=102769183913594&w=2
- MISChttp://www.securityfocus.com/bid/5296