SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

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.

MEDIUM 5.3EPSS 78.5%

Does this matter?

EPSS puts the probability of exploitation in the next 30 days at 78.5%, higher than 100% of all known CVEs. Patch or mitigate before the next change window.

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.

CVSS 3.1
5.3 MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
EPSS
78.48% probability · 100th percentile
CISA KEV
Not listed
Weakness
CWE-200
Affected
eclipse/jetty · debian/debian linux · oracle/communications cloud native core policy · oracle/rest data services · netapp/active iq unified manager · netapp/hci · netapp/management services for element software · netapp/snap creator framework
Source
emo@eclipse.org

References

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.