CVE-2020-27216
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.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (4.35%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
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.
- CVSS 3.1
- 7.0 HIGHCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 4.35% probability · 91th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-378, CWE-379
- Affected
- eclipse/jetty · netapp/snap creator framework · netapp/snapcenter · netapp/vasa provider · netapp/virtual storage console · netapp/storage replication adapter · oracle/communications application session controller · oracle/communications converged application server - service controller · oracle/communications element manager · oracle/communications offline mediation controller · oracle/communications pricing design center · oracle/communications services gatekeeper · oracle/flexcube core banking · oracle/flexcube private banking · oracle/jd edwards enterpriseone tools · oracle/siebel core - automation · apache/beam · debian/debian linux
- Source
- emo@eclipse.org
EPSS 4.4% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- https://bugs.eclipse.org/bugs/show_bug.cgi?id=567921Exploit, Patch, Vendor Advisory
- https://github.com/eclipse/jetty.project/security/advisories/GHSA-g3wg-6mcf-8jj6#advisory-comment-63053Exploit, Mitigation, Third Party Advisory
- https://lists.apache.org/thread.html/r0259b14ae69b87821e27fed1f5333ea86018294fd31aab16b1fac84e%40%3Cissues.beam.apache.org%3E
- https://lists.apache.org/thread.html/r07525dc424ed69b3919618599e762f9ac03791490ca9d724f2241442%40%3Cdev.felix.apache.org%3E
- https://lists.apache.org/thread.html/r09b345099b4f88d2bed7f195a96145849243fb4e53661aa3bcf4c176%40%3Cissues.zookeeper.apache.org%3E
- https://lists.apache.org/thread.html/r0d7ad4f02c44d5d53a9ffcbca7ff4a8138241322da9c5c35b5429630%40%3Cissues.beam.apache.org%3E
- https://lists.apache.org/thread.html/r0d95e01f52667f44835c40f6dea72bb4397f33cd70a564ea74f3836d%40%3Cissues.beam.apache.org%3E
- https://lists.apache.org/thread.html/r0df8fe10fc36028cf6d0381ab66510917d0d68bc5ef7042001d03830%40%3Cdev.zookeeper.apache.org%3E
- https://lists.apache.org/thread.html/r0e9efe032cc65433251ee6470c66c334d4e7db9101e24cf91a3961f2%40%3Ccommits.directory.apache.org%3E
- https://lists.apache.org/thread.html/r0f5e9b93133ef3aaf31484bc3e15cc4b85f8af0fe4de2dacd9379d72%40%3Cdev.felix.apache.org%3E
- https://lists.apache.org/thread.html/r100c5c7586a23a19fdb54d8a32e17cd0944bdaa46277b35c397056f6%40%3Cnotifications.zookeeper.apache.org%3E
- https://lists.apache.org/thread.html/r171846414347ec5fed38241a9f8a009bd2c89d902154c6102b1fb39a%40%3Cissues.beam.apache.org%3E
- https://lists.apache.org/thread.html/r185d10aae8161c08726f3ba9a1f1c47dfb97624ea6212fa217173204%40%3Cissues.beam.apache.org%3E
- https://lists.apache.org/thread.html/r18b6f10d9939419bae9c225d5058c97533cb376c9d6d0a0733ddd48d%40%3Cnotifications.zookeeper.apache.org%3E
- https://lists.apache.org/thread.html/r19e8b338af511641d211ff45c43646fe1ae19dc9897d69939c09cabe%40%3Cissues.beam.apache.org%3E
- https://lists.apache.org/thread.html/r1d40368a309f9d835dcdd900249966e4fcbdf98c1cc4c84db2cd9964%40%3Cissues.beam.apache.org%3E
- https://lists.apache.org/thread.html/r1d45051310b11c6d6476f20d71b08ea97cb76846cbf61d196bac1c3f%40%3Cdev.zookeeper.apache.org%3E
- https://lists.apache.org/thread.html/r1dbb87c9255ecefadd8de514fa1d35c1d493c0527d7672cf40505d04%40%3Ccommits.zookeeper.apache.org%3E
- https://lists.apache.org/thread.html/r1ed79516bd6d248ea9f0e704dbfd7de740d5a75b71c7be8699fec824%40%3Cnotifications.zookeeper.apache.org%3E
- https://lists.apache.org/thread.html/r1ef28b89ff0281c87ba3a7659058789bf28a99b8074191f1c3678db8%40%3Cissues.beam.apache.org%3E
- https://lists.apache.org/thread.html/r1fe31643fc34b4a33ae3d416d92c271aa97663f1782767d25e1d9ff8%40%3Cissues.beam.apache.org%3E
- https://lists.apache.org/thread.html/r2122537d3f9beb0ce59f44371a951b226406719919656ed000984bd0%40%3Cissues.beam.apache.org%3E
- https://lists.apache.org/thread.html/r279254a1bd6434c943da52000476f307e62b6910755387aeca1ec9a1%40%3Cissues.beam.apache.org%3E
- https://lists.apache.org/thread.html/r2aa316d008dab9ae48350b330d15dc1b863ea2a933558fbfc42b91a6%40%3Cissues.beam.apache.org%3E
- https://lists.apache.org/thread.html/r2d17b2a4803096ba427f3575599ea29b55f5cf9dbc1f12ba044cae1a%40%3Cnotifications.zookeeper.apache.org%3E
- https://lists.apache.org/thread.html/r2e02700f7cfecb213de50be83e066086bea90278cd753db7fdc2ccff%40%3Cissues.beam.apache.org%3E
- https://lists.apache.org/thread.html/r2f732ee49d00610683ab5ddb4692ab25136b00bfd132ca3a590218a9%40%3Cissues.beam.apache.org%3E
- https://lists.apache.org/thread.html/r3042a9dd2973aa229e52d022df7813e4d74b67df73bfa6d97bb0caf8%40%3Cissues.beam.apache.org%3E
- https://lists.apache.org/thread.html/r336b1694a01858111e4625fb9ab2b07ad43a64a525cf6402e06aa6bf%40%3Cissues.beam.apache.org%3E
- https://lists.apache.org/thread.html/r351298dd39fc1ab63303be94b0c0d08acd72b17448e0346d7386189b%40%3Cissues.beam.apache.org%3E
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.