Information disclosure in Eclipse Jetty
CVE-2021-28169
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.
Vulnerability class: Information Disclosure
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N.
EPSS exploit prediction
EPSS: 0.785 (99.6th percentile), scored .
High probability of exploitation in the next 30 days — patch promptly. 100th percentile — 99.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.785 · newest: 0.785 · change: 0.000
Affected products
- Eclipse Jetty
- NetApp Active Iq Unified Manager
- NetApp Hci
- NetApp Management Services For Element Software
- NetApp Snap Creator Framework
- Oracle Communications Cloud Native Core Policy — versions 1.14.0
- Oracle Rest Data Services
- The Eclipse Foundation Jetty — versions unspecified
- Debian Linux — versions 9.0, 10.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- github.com/eclipse/jetty.project/security/advisories/GHSA-gwcr-j4wh-j3cq (Third Party Advisory)
- lists.apache.org/thread.html/r2721aba31a8562639c4b937150897e24f78f747cdbda8641c… (mailing-list)
- lists.debian.org/debian-lts-announce/2021/06/msg00017.html (mailing-list, Mailing List, Third Party Advisory)
- lists.apache.org/thread.html/ref1c161a1621504e673f9197b49e6efe5a33ce3f0e6d8f1f8… (mailing-list)
- lists.apache.org/thread.html/r29678972c3f8164b151fd7a5802785d402e530c09870a82ff… (mailing-list)
- lists.apache.org/thread.html/r04a4b4553a23aff26f42635a6ae388c3b162aab30a88d12e5… (mailing-list)
- lists.apache.org/thread.html/rd5b52362f5edf98e0dcab6541a381f571cccc05ad9188e793… (mailing-list)
- lists.apache.org/thread.html/r284de9c5399486dfff12ab9e7323ca720dd7019a9a3e11c85… (mailing-list)
- lists.apache.org/thread.html/r234f6452297065636356f43654cdacef565b8f9ceb0e0c07f… (mailing-list)
- lists.apache.org/thread.html/r91e34ff61aff8fd25a3f2a21539597c6ef7589a31c199b0a9… (mailing-list)
Frequently asked questions
- What is CVE-2021-28169?
- CVE-2021-28169 is a medium-severity vulnerability in Eclipse Jetty, classified under Information Disclosure. CVSS score: 5.3/10. Published 2021-06-09.
- How severe is CVE-2021-28169?
- Medium severity. CVSS v3 base score is 5.3 out of 10.
- Is CVE-2021-28169 known to be exploited?
- 25 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.