7.5 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
0.001 Low
EPSS
Percentile
36.4%
The v0.38.0 release of go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp
uses the httpconv.ServerRequest
function to annotate metric measurements for the http.server.request_content_length
, http.server.response_content_length
, and http.server.duration
instruments.
The ServerRequest
function sets the http.target
attribute value to be the whole request URI (including the query string)^1. The metric instruments do not “forget” previous measurement attributes when cumulative
temporality is used, this means the cardinality of the measurements allocated is directly correlated with the unique URIs handled. If the query string is constantly random, this will result in a constant increase in memory allocation that can be used in a denial-of-service attack.
Pseudo-attack:
for infinite loop {
r := generate_random_string()
do_http_request("/some/path?random="+r)
}
go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp
- v0.39.0go.opentelemetry.io/contrib/instrumentation/github.com/astaxie/beego/otelbeego
- v0.39.0