In Eclipse Jetty, the Digest authentication server-side component uses ISO-8859-1 to encode the password as bytes. This was done because the initial specification for HTTP did not specify explicitly a charset, and it was assumed to be ISO-8859-1 for historical reasons. If the password contains characters that cannot be represented in ISO-8859-1, they are silently replaced by `?`.
This happens with passwords that contain Chinese, Cyrillic or Greek characters, for example: `αβ123` converts to `??123`. An attacker can send a request with a digest `Authorization` header crafted with a password made of only `?` characters; the server would match any password of the same length that contains non-ISO-8859-1 characters. Recent HTTP Digest [RFC-7616](https://datatracker.ietf.org/doc/html/rfc7616) supports a `charset` parameters that defaults to UTF-8 that allows for correct encoding/decoding of passwords.
Attack Parameters
Impact Assessment
CVSS Vector v4.0
Vulnerable Products 5
| Configuration | From (including) | Up to (excluding) |
|---|---|---|
|
Eclipse Jetty
cpe:2.3:a:eclipse:jetty:*:*:*:*:*:*:*:*
|
9.4.0
|
9.4.63
|
|
Eclipse Jetty
cpe:2.3:a:eclipse:jetty:*:*:*:*:*:*:*:*
|
10.0.0
|
10.0.31
|
|
Eclipse Jetty
cpe:2.3:a:eclipse:jetty:*:*:*:*:*:*:*:*
|
11.0.0
|
11.0.31
|
|
Eclipse Jetty
cpe:2.3:a:eclipse:jetty:*:*:*:*:*:*:*:*
|
12.0.0
|
12.0.36
|
|
Eclipse Jetty
cpe:2.3:a:eclipse:jetty:*:*:*:*:*:*:*:*
|
12.1.0
|
12.1.10
|