https://bugzilla.redhat.com/show_bug.cgi?id=1891132
Bug ID: 1891132
Summary: CVE-2020-27216 jetty: local temporary directory
hijacking vulnerability
Product: Security Response
Hardware: All
OS: Linux
Status: NEW
Component: vulnerability
Keywords: Security
Severity: medium
Priority: medium
Assignee: security-response-team(a)redhat.com
Reporter: gsuckevi(a)redhat.com
CC: abenaiss(a)redhat.com, aboyko(a)redhat.com,
aileenc(a)redhat.com, akoufoud(a)redhat.com,
alazarot(a)redhat.com, almorale(a)redhat.com,
anstephe(a)redhat.com, aos-bugs(a)redhat.com,
ataylor(a)redhat.com, bmontgom(a)redhat.com,
chazlett(a)redhat.com, drieden(a)redhat.com,
eclipse-sig(a)lists.fedoraproject.org,
eparis(a)redhat.com, etirelli(a)redhat.com,
ganandan(a)redhat.com, ggaughan(a)redhat.com,
gmalinko(a)redhat.com, gvarsami(a)redhat.com,
ibek(a)redhat.com, janstey(a)redhat.com,
java-maint(a)redhat.com,
java-sig-commits(a)lists.fedoraproject.org,
jburrell(a)redhat.com, jcoleman(a)redhat.com,
jjohnstn(a)redhat.com, jochrist(a)redhat.com,
jokerman(a)redhat.com, jstastny(a)redhat.com,
jwon(a)redhat.com, kconner(a)redhat.com,
krathod(a)redhat.com, krzysztof.daniel(a)gmail.com,
kverlaen(a)redhat.com, ldimaggi(a)redhat.com,
mat.booth(a)redhat.com, mizdebsk(a)redhat.com,
mnovotny(a)redhat.com, nstielau(a)redhat.com,
nwallace(a)redhat.com, pbhattac(a)redhat.com,
pdrozd(a)redhat.com, pjindal(a)redhat.com,
rrajasek(a)redhat.com, rsynek(a)redhat.com,
rwagner(a)redhat.com, sdaley(a)redhat.com,
sochotni(a)redhat.com, sponnaga(a)redhat.com,
sthorger(a)redhat.com, tcunning(a)redhat.com,
tkirby(a)redhat.com, vbobade(a)redhat.com
Target Milestone: ---
Classification: Other
In Eclipse Jetty versions 1.0 thru 9.4.32.v20200930, 10.0.0.alpha1 thru
10.0.0.beta2, and 11.0.0.alpha1 thru 11.0.0.beta2O, on Unix like systems, the
system's temporary directory is shared between all users on that system. A
collocated user can observe the process of creating a temporary sub directory
in the shared temporary directory and race to complete the creation of the
temporary subdirectory. If the attacker wins the race then they will have read
and write permission to the subdirectory used to unpack web applications,
including their WEB-INF/lib jar files and JSP files. If any code is ever
executed out of this temporary directory, this can lead to a local privilege
escalation vulnerability.
References:
https://bugs.eclipse.org/bugs/show_bug.cgi?id=567921
https://github.com/eclipse/jetty.project/security/advisories/GHSA-g3wg-6m...
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