Vulnerability · Published Jul 7, 2022 · Assigned by symantec
CVE-2021-46825
Critical 9.1
In plain English
A critical-severity security flaw in Advance Secure Gateway and ProxySG. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.7% (higher than 77% of all known vulnerabilities).
Severity (CVSS NVD)9.1Critical
Exploit odds (30 days)1.7%top 22.9% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
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
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| n/a | Advance Secure Gateway and ProxySG | 6.7, 7.3 |