The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Start learningUpgrade github.com/prometheus/client_golang/prometheus/promhttp
to version 1.11.1 or higher.
Affected versions of this package are vulnerable to Denial of Service (DoS) when handling requests with non-standard HTTP methods.
Note: In order to be affected, an instrumented software must:
use promhttp.InstrumentHandler*
middleware except RequestsInFlight
not filter any specific methods (e.g GET) before middleware
pass metric with method
label name to the middleware
not have any firewall/LB/proxy that filters away requests with unknown method
.
Workarounds:
removing the method
label name from counter/gauge
used in the InstrumentHandler
turning off affected promhttp
handlers
adding custom middleware before promhttp
handler that will sanitize the request method given by Go http.Request
using a reverse proxy or web application firewall, configured to only allow a limited set of methods.
Denial of Service (DoS) describes a family of attacks, all aimed at making a system inaccessible to its intended and legitimate users.
Unlike other vulnerabilities, DoS attacks usually do not aim at breaching security. Rather, they are focused on making websites and services unavailable to genuine users resulting in downtime.
One popular Denial of Service vulnerability is DDoS (a Distributed Denial of Service), an attack that attempts to clog network pipes to the system by generating a large volume of traffic from many machines.
When it comes to open source libraries, DoS vulnerabilities allow attackers to trigger such a crash or crippling of the service by using a flaw either in the application code or from the use of open source libraries.
Two common types of DoS vulnerabilities:
High CPU/Memory Consumption- An attacker sending crafted requests that could cause the system to take a disproportionate amount of time to process. For example, commons-fileupload:commons-fileupload.
Crash - An attacker sending crafted requests that could cause the system to crash. For Example, npm ws
package