Information disclosure in The Eclipse Foundation 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-…
Vulnerability class: Information Disclosure
EPSS: 0.903 (99.6th percentile) — read the EPSS interpretation.
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.
Affected products
- The Eclipse Foundation Jetty — versions unspecified
Weakness classification (CWE)
Public proof-of-concept exploits
References
- github.com/eclipse/jetty.project/security/advisories/GHSA-gwcr-j4wh-j3cq (x_refsource_CONFIRM)
- [kafka-users] 20210617 vulnerabilities (mailing-list, x_refsource_MLIST)
- [debian-lts-announce] 20210617 [SECURITY] [DLA 2688-1] jetty9 security update (mailing-list, x_refsource_MLIST)
- [kafka-jira] 20210623 [GitHub] [kafka] dongjinleekr opened a new pull request #10919: KAFKA-12985: CVE-2021-28169 - Upgrade jetty to 9.4.41 (mailing-list, x_refsource_MLIST)
- [kafka-dev] 20210623 [jira] [Created] (KAFKA-12985) CVE-2021-28169 - Upgrade jetty to 9.4.41 (mailing-list, x_refsource_MLIST)
- [kafka-jira] 20210623 [jira] [Created] (KAFKA-12985) CVE-2021-28169 - Upgrade jetty to 9.4.41 (mailing-list, x_refsource_MLIST)
- [kafka-jira] 20210704 [GitHub] [kafka] ijuma commented on pull request #10919: KAFKA-12985: CVE-2021-28169 - Upgrade jetty to 9.4.42 (mailing-list, x_refsource_MLIST)
- [kafka-jira] 20210704 [GitHub] [kafka] ijuma merged pull request #10919: KAFKA-12985: CVE-2021-28169 - Upgrade jetty to 9.4.42 (mailing-list, x_refsource_MLIST)
- [kafka-dev] 20210722 [jira] [Resolved] (KAFKA-12985) CVE-2021-28169 - Upgrade jetty to 9.4.41 (mailing-list, x_refsource_MLIST)
- [kafka-jira] 20210722 [jira] [Updated] (KAFKA-12985) CVE-2021-28169 - Upgrade jetty to 9.4.42 (mailing-list, x_refsource_MLIST)
Frequently asked questions
- What is CVE-2021-28169?
- CVE-2021-28169 is a medium-severity vulnerability in The Eclipse Foundation 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.