CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
HIGH
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
AI Score
Confidence
Low
EPSS
Percentile
29.5%
Versions of Async HTTP Client prior to 1.13.2 are vulnerable to a form of targeted request manipulation called CRLF injection. This vulnerability was the result of insufficient validation of HTTP header field values before sending them to the network. Users are vulnerable if they pass untrusted data into HTTP header field values without prior sanitisation. Common use-cases here might be to place usernames from a database into HTTP header fields.
This vulnerability allows attackers to inject new HTTP header fields, or entirely new requests, into the data stream. This can cause requests to be understood very differently by the remote server than was intended. In general, this is unlikely to result in data disclosure, but it can result in a number of logical errors and other misbehaviours.
github.com/swift-server/async-http-client
github.com/swift-server/async-http-client/commit/7f05a8da46cc2a4ab43218722298b81ac7a08031
github.com/swift-server/async-http-client/releases/tag/1.12.1
github.com/swift-server/async-http-client/releases/tag/1.13.2
github.com/swift-server/async-http-client/releases/tag/1.4.1
github.com/swift-server/async-http-client/releases/tag/1.9.1
github.com/swift-server/async-http-client/security/advisories/GHSA-v3r5-pjpm-mwgq
nvd.nist.gov/vuln/detail/CVE-2023-0040
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
HIGH
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
AI Score
Confidence
Low
EPSS
Percentile
29.5%