| Name | CVE-2021-28169 |
| Description | For Eclipse Jetty versions <= 9.4.40, <= 10.0.2, <= 11.0.2, it is possible for requests to the ConcatServlet with a doubly encoded path to access protected resources within the WEB-INF directory. For example a request to `/concat?/%2557EB-INF/web.xml` can retrieve the web.xml file. This can reveal sensitive information regarding the implementation of a web application. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| References | DLA-2688-1, DSA-4949-1, ELA-443-1, ELA-650-1 |
| Debian Bugs | 989999 |
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|---|---|---|
| jetty (PTS) | jessie, jessie (lts) | 6.1.26-4+deb8u2 | fixed |
| jetty8 (PTS) | jessie, jessie (lts) | 8.1.16-4+deb8u1 | fixed |
| jetty9 (PTS) | stretch (security), stretch (lts), stretch | 9.2.30-0+deb9u2 | fixed |
| buster (security), buster, buster (lts) | 9.4.50-4+deb10u2 | fixed | |
| bullseye (security), bullseye | 9.4.50-4+deb11u2 | fixed | |
| bookworm (security), bookworm | 9.4.50-4+deb12u3 | fixed | |
| sid, trixie | 9.4.56-1 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|---|---|---|---|---|---|
| jetty | source | jessie | 6.1.26-4+deb8u2 | ELA-443-1 | ||
| jetty | source | (unstable) | (unfixed) | |||
| jetty8 | source | jessie | 8.1.16-4+deb8u1 | ELA-650-1 | ||
| jetty8 | source | (unstable) | (unfixed) | |||
| jetty9 | source | stretch | 9.2.30-0+deb9u2 | DLA-2688-1 | ||
| jetty9 | source | buster | 9.4.16-0+deb10u1 | DSA-4949-1 | ||
| jetty9 | source | (unstable) | 9.4.39-2 | 989999 |
https://github.com/eclipse/jetty.project/security/advisories/GHSA-gwcr-j4wh-j3cq
https://github.com/eclipse/jetty.project/issues/6263
https://github.com/eclipse/jetty.project/commit/1c05b0bcb181c759e98b060bded0b9376976b055 (v9.4.41)