Very Low
CVE-2018-19131
CVE ID
AttackerKB requires a CVE ID in order to pull vulnerability data and references from the CVE list and the National Vulnerability Database. If available, please supply below:
Add References:
CVE-2018-19131
MITRE ATT&CK
Collection
Command and Control
Credential Access
Defense Evasion
Discovery
Execution
Exfiltration
Impact
Initial Access
Lateral Movement
Persistence
Privilege Escalation
Topic Tags
Description
Squid before 4.4 has XSS via a crafted X.509 certificate during HTTP(S) error page generation for certificate errors.
Add Assessment
Ratings
-
Attacker ValueVery Low
-
ExploitabilityVery Low
Technical Analysis
Bottom line: The commonName property of the certificate that signs the “failed to connect securely” error page within Squid gets rendered as HTML on the client/victim side.
In order to successfully exploit this XSS one would need to write a malicious .pem file in the location specified by squid.conf or modify squid.conf to point to an existing malicious .pem file.
If I had root level access to the filesystem on a squid box, serving a XSS from the error page would not be as useful as any number of other things that could be done. Similarly story if you MITM the victim.
Would you also like to delete your Exploited in the Wild Report?
Delete Assessment Only Delete Assessment and Exploited in the Wild ReportCVSS V3 Severity and Metrics
General Information
Vendors
- squid-cache
Products
- squid
References
Additional Info
Technical Analysis
Report as Emergent Threat Response
Report as Exploited in the Wild
CVE ID
AttackerKB requires a CVE ID in order to pull vulnerability data and references from the CVE list and the National Vulnerability Database. If available, please supply below: