Vulnerability Name:

CVE-2015-8597 (CCN-109133)

Assigned:2015-12-17
Published:2015-12-17
Updated:2016-01-13
Summary:Open redirect vulnerability in Blue Coat ProxySG 6.5 before 6.5.8.8 and 6.6 and Advanced Secure Gateway (ASG) 6.6 might allow remote attackers to redirect users to arbitrary web sites and conduct phishing attacks via a base64-encoded URL in conjunction with a "clear text" one in a coaching page, as demonstrated by "http://www.%humbug-URL%.local/bluecoat-splash-API?%BASE64-URL%."

CWE-601: URL Redirection to Untrusted Site ('Open Redirect')
CVSS v3 Severity:7.4 High (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:H/A:N)
6.4 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:H/A:N/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): Required
Scope:Scope (S): Changed
Impact Metrics:Confidentiality (C): None
Integrity (I): High
Availibility (A): None
4.7 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:L/A:N)
4.1 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:L/A:N/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): Required
Scope:Scope (S): Changed
Impact Metrics:Confidentiality (C): None
Integrity (I): Low
Availibility (A): None
CVSS v2 Severity:5.8 Medium (CVSS v2 Vector: AV:N/AC:M/Au:N/C:P/I:P/A:N)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Medium
Authentication (Au): None
Impact Metrics:Confidentiality (C): Partial
Integrity (I): Partial
Availibility (A): None
4.0 Medium (CCN CVSS v2 Vector: AV:N/AC:L/Au:S/C:N/I:P/A:N)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Athentication (Au): Single_Instance
Impact Metrics:Confidentiality (C): None
Integrity (I): Partial
Availibility (A): None
Vulnerability Type:CWE-Other
Vulnerability Consequences:Gain Access
References:Source: MITRE
Type: CNA
CVE-2015-8597

Source: MISC
Type: Exploit
http://knowitsecure.se/2015/12/18/knowit-secure-sakrar-bluecoat/

Source: SECTRACK
Type: UNKNOWN
1034506

Source: CCN
Type: Blue Coat Security Advisory SA107
ProxySG Coaching Page Redirect

Source: CONFIRM
Type: Vendor Advisory
https://bto.bluecoat.com/security-advisory/sa107

Source: XF
Type: UNKNOWN
bluecoat-proxysg-open-redirect(109133)

Vulnerable Configuration:Configuration 1:
  • cpe:/a:bluecoat:proxysg:*:*:*:*:*:*:*:* (Version <= 6.5.8.7)

    • Configuration 2:
  • cpe:/a:bluecoat:advanced_secure_gateway:6.6:*:*:*:*:*:*:*

    • Configuration CCN 1:
  • cpe:/a:bluecoat:proxysg:6.5:*:*:*:*:*:*:*
  • OR cpe:/a:bluecoat:proxysg:6.6:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    BACK
    bluecoat proxysg *
    bluecoat advanced secure gateway 6.6
    bluecoat proxysg 6.5
    bluecoat proxysg 6.6