VAR-201512-0551
Vulnerability from variot - Updated: 2023-12-18 12:44The default configuration of SGOS in Blue Coat ProxySG before 6.2.16.5, 6.5 before 6.5.7.1, and 6.6 before 6.6.2.1 forwards authentication challenges from upstream origin content servers (OCS) when used in an explicit proxy deployment, which makes it easier for remote attackers to obtain sensitive information via a 407 (aka Proxy Authentication Required) HTTP status code, as demonstrated when using NTLM authentication. Bluecoat ProxySG is prone to an authentication-bypass vulnerability. An attacker can exploit this issue to bypass the authentication mechanism and perform unauthorized actions. This may lead to further attacks. Blue Coat Systems ProxySG is a set of security Web gateway equipment of American Blue Coat Systems company. The appliance provides user authentication, web filtering, data loss protection, and more to control all web traffic. Remote attackers can use the 407 HTTP status code to exploit this vulnerability to obtain sensitive information. The following versions are affected: Blue Coat Systems ProxySG prior to 6.2.16.5, 6.5 prior to 6.5.7.1, and 6.6 prior to 6.6.2.1
Show details on source website{
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
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