CVE-2016-4553
UnknownEPSS 79.65%
Last modified
CVE-2016-4553 is a vulnerability of currently unknown severity. client_side.cc in Squid before 3.5.18 and 4.x before 4.0.10 does not properly ignore the Host header when absolute-URI is provided, which allows remote attackers to conduct cache-poisoning attacks via an HTTP request.. EPSS estimates a 79.65% chance of exploitation in the next 30 days.
Description
client_side.cc in Squid before 3.5.18 and 4.x before 4.0.10 does not properly ignore the Host header when absolute-URI is provided, which allows remote attackers to conduct cache-poisoning attacks via an HTTP request.
Metrics
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Canonical | Ubuntu Linux | 12.04 |
| Canonical | Ubuntu Linux | 14.04 |
| Canonical | Ubuntu Linux | 15.10 |
| Canonical | Ubuntu Linux | 16.04 |
| Squid-Cache | Squid | <= 3.5.17 |
| Squid-Cache | Squid | 4.0.1 |
| Squid-Cache | Squid | 4.0.2 |
| Squid-Cache | Squid | 4.0.3 |
| Squid-Cache | Squid | 4.0.4 |
| Squid-Cache | Squid | 4.0.5 |
| Squid-Cache | Squid | 4.0.6 |
| Squid-Cache | Squid | 4.0.7 |
| Squid-Cache | Squid | 4.0.8 |
| Squid-Cache | Squid | 4.0.9 |
| Oracle | Linux | 7 |
References
- http://bugs.squid-cache.org/show_bug.cgi?id=4501Vendor Advisory
- http://www.securitytracker.com/id/1035768Third Party Advisory
- http://www.squid-cache.org/Advisories/SQUID-2016_7.txtVendor Advisory
- http://www.ubuntu.com/usn/USN-2995-1Third Party Advisory
- http://bugs.squid-cache.org/show_bug.cgi?id=4501Vendor Advisory
- http://www.securitytracker.com/id/1035768Third Party Advisory
- http://www.squid-cache.org/Advisories/SQUID-2016_7.txtVendor Advisory
- http://www.ubuntu.com/usn/USN-2995-1Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2016-4553?
client_side.cc in Squid before 3.5.18 and 4.x before 4.0.10 does not properly ignore the Host header when absolute-URI is provided, which allows remote attackers to conduct cache-poisoning attacks via an HTTP request.
How severe is CVE-2016-4553?
Severity scoring for CVE-2016-4553 is pending analysis. The EPSS model estimates a 79.65% probability of exploitation in the next 30 days.
How do I fix CVE-2016-4553?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
Are you affected by CVE-2016-4553?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST