Eelko Neven has reported some vulnerabilities in Progress, which can be exploited by malicious people to cause a DoS (Denial of Service).
The vulnerabilities are caused due to an infinite loop when WebSpeed agents call _edit, _admin, _comp, _dict, dict, or _help with no additional parameter. These can be exploited to cause a DoS due to CPU exhaustion by requesting specially crafted URLs.
The vulnerabilities are reported in Progress 9.1e and 10b. Other versions may also be affected.
Solution: Filter malicious URLs using a proxy or firewall.
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Subject: Progress WebSpeed Multiple Denial of Service Vulnerabilities
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