CVE-2021-46825

Symantec Advanced Secure Gateway (ASG) and ProxySG are susceptible to an HTTP desync vulnerability. When a remote unauthenticated attacker and other web clients communicate through the proxy with the same web server, the attacker can send crafted HTTP requests and cause the proxy to forward web server responses to unintended clients. Severity/CVSSv3: High / 8.1 AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N

• CVE ID
• CVE-2021-46825

• Assigner
• secure@symantec.com

• Vulnerability Status
• Analyzed

• Published Version
• 2022-07-07T16:15:09

• Last Modified Date
• 2022-07-14T18:44:21

• Version
• 2.0

• Vector String
• AV:N/AC:L/Au:N/C:P/I:P/A:N

• Access Vector
• NETWORK

• Access Compatibility
• LOW

• Authentication
• NONE

• Confidentiality Impact
• PARTIAL

• Integrity Impact
• PARTIAL

• Availability Impact
• NONE

• Base Score
• 6.4

• Severity
• MEDIUM

• Exploitability Score
• 10

• Impact Score
• 4.9

• Version
• 3.1

• Vector String
• CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

• Attack Vector
• NETWORK

• Attack Compatibility
• LOW

• Privileges Required
• NONE

• User Interaction
• NONE

• Scope
• UNCHANGED

• Confidentiality Impact
• HIGH

• Availability Impact
• NONE

• Base Score
• 9.1

• Base Severity
• CRITICAL

• Exploitability Score
• 3.9

• Impact Score
• 5.2