NVD - CVE-2021-21290

NOTICE UPDATED - April, 25th 2024

NIST has updated the NVD program announcement page with additional information regarding recent concerns and the temporary delays in enrichment efforts.

CVE-2021-21290 Detail

Modified

This vulnerability has been modified since it was last analyzed by the NVD. It is awaiting reanalysis which may result in further changes to the information provided.

Description

Netty is an open-source, asynchronous event-driven network application framework for rapid development of maintainable high performance protocol servers & clients. In Netty before version 4.1.59.Final there is a vulnerability on Unix-like systems involving an insecure temp file. When netty's multipart decoders are used local information disclosure can occur via the local system temporary directory if temporary storing uploads on the disk is enabled. On unix-like systems, the temporary directory is shared between all user. As such, writing to this directory using APIs that do not explicitly set the file/directory permissions can lead to information disclosure. Of note, this does not impact modern MacOS Operating Systems. The method "File.createTempFile" on unix-like systems creates a random file, but, by default will create this file with the permissions "-rw-r--r--". Thus, if sensitive information is written to this file, other local users can read this information. This is the case in netty's "AbstractDiskHttpData" is vulnerable. This has been fixed in version 4.1.59.Final. As a workaround, one may specify your own "java.io.tmpdir" when you start the JVM or use "DefaultHttpDataFactory.setBaseDir(...)" to set the directory to something that is only readable by the current user.

Severity

CVSS 4.0 Severity and Metrics:

NIST: NVD

N/A

NVD assessment not yet provided.

NVD Analysts use publicly available information to associate vector strings and CVSS scores. We also display any CVSS information provided within the CVE List from the CNA.

Note: NVD Analysts have not published a CVSS score for this CVE at this time. NVD Analysts use publicly available information at the time of analysis to associate CVSS vector strings.

CVSS 3.x Severity and Metrics:

NIST: NVD

Base Score: 5.5 MEDIUM

Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Nist CVSS score does not match with CNA score

CNA: GitHub, Inc.

Base Score: 6.2 MEDIUM

Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

NVD Analysts use publicly available information to associate vector strings and CVSS scores. We also display any CVSS information provided within the CVE List from the CNA.

Note: It is possible that the NVD CVSS may not match that of the CNA. The most common reason for this is that publicly available information does not provide sufficient detail or that information simply was not available at the time the CVSS vector string was assigned.

CVSS 2.0 Severity and Metrics:

National Institute of Standards and Technology

NIST: NVD

Base Score: 1.9 LOW

Vector: (AV:L/AC:M/Au:N/C:P/I:N/A:N)

NVD Analysts use publicly available information to associate vector strings and CVSS scores. We also display any CVSS information provided within the CVE List from the CNA.

Note: NVD Analysts have published a CVSS score for this CVE based on publicly available information at the time of analysis. The CNA has not provided a score within the CVE List.

References to Advisories, Solutions, and Tools

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Hyperlink	Resource
https://github.com/netty/netty/commit/c735357bf29d07856ad171c6611a2e1a0e0000ec	Patch Third Party Advisory
https://github.com/netty/netty/security/advisories/GHSA-5mcr-gq6c-3hq2	Exploit Third Party Advisory
https://lists.apache.org/thread.html/r0053443ce19ff125981559f8c51cf66e3ab4350f47812b8cf0733a05%40%3Cdev.kafka.apache.org%3E
https://lists.apache.org/thread.html/r02e467123d45006a1dda20a38349e9c74c3a4b53e2e07be0939ecb3f%40%3Cdev.ranger.apache.org%3E
https://lists.apache.org/thread.html/r0857b613604c696bf9743f0af047360baaded48b1c75cf6945a083c5%40%3Cjira.kafka.apache.org%3E
https://lists.apache.org/thread.html/r10308b625e49d4e9491d7e079606ca0df2f0a4d828f1ad1da64ba47b%40%3Cjira.kafka.apache.org%3E
https://lists.apache.org/thread.html/r1908a34b9cc7120e5c19968a116ddbcffea5e9deb76c2be4fa461904%40%3Cdev.zookeeper.apache.org%3E
https://lists.apache.org/thread.html/r2748097ea4b774292539cf3de6e3b267fc7a88d6c8ec40f4e2e87bd4%40%3Cdev.kafka.apache.org%3E
https://lists.apache.org/thread.html/r2936730ef0a06e724b96539bc7eacfcd3628987c16b1b99c790e7b87%40%3Cissues.zookeeper.apache.org%3E
https://lists.apache.org/thread.html/r2fda4dab73097051977f2ab818f75e04fbcb15bb1003c8530eac1059%40%3Cjira.kafka.apache.org%3E
https://lists.apache.org/thread.html/r326ec431f06eab7cb7113a7a338e59731b8d556d05258457f12bac1b%40%3Cdev.kafka.apache.org%3E
https://lists.apache.org/thread.html/r4efed2c501681cb2e8d629da16e48d9eac429624fd4c9a8c6b8e7020%40%3Cdev.tinkerpop.apache.org%3E
https://lists.apache.org/thread.html/r584cf871f188c406d8bd447ff4e2fd9817fca862436c064d0951a071%40%3Ccommits.pulsar.apache.org%3E
https://lists.apache.org/thread.html/r59bac5c09f7a4179b9e2460e8f41c278aaf3b9a21cc23678eb893e41%40%3Cjira.kafka.apache.org%3E
https://lists.apache.org/thread.html/r5bf303d7c04da78f276765da08559fdc62420f1df539b277ca31f63b%40%3Cissues.zookeeper.apache.org%3E
https://lists.apache.org/thread.html/r5c701840aa2845191721e39821445e1e8c59711e71942b7796a6ec29%40%3Cusers.activemq.apache.org%3E
https://lists.apache.org/thread.html/r5e4a540089760c8ecc2c411309d74264f1dad634ad93ad583ca16214%40%3Ccommits.kafka.apache.org%3E
https://lists.apache.org/thread.html/r5e66e286afb5506cdfe9bbf68a323e8d09614f6d1ddc806ed0224700%40%3Cjira.kafka.apache.org%3E
https://lists.apache.org/thread.html/r71dbb66747ff537640bb91eb0b2b24edef21ac07728097016f58b01f%40%3Ccommits.kafka.apache.org%3E
https://lists.apache.org/thread.html/r743149dcc8db1de473e6bff0b3ddf10140a7357bc2add75f7d1fbb12%40%3Cdev.zookeeper.apache.org%3E
https://lists.apache.org/thread.html/r790c2926efcd062067eb18fde2486527596d7275381cfaff2f7b3890%40%3Cissues.bookkeeper.apache.org%3E
https://lists.apache.org/thread.html/r7bb3cdc192e9a6f863d3ea05422f09fa1ae2b88d4663e63696ee7ef5%40%3Cdev.ranger.apache.org%3E
https://lists.apache.org/thread.html/r9924ef9357537722b28d04c98a189750b80694a19754e5057c34ca48%40%3Ccommits.pulsar.apache.org%3E
https://lists.apache.org/thread.html/ra0fc2b4553dd7aaf75febb61052b7f1243ac3a180a71c01f29093013%40%3Cjira.kafka.apache.org%3E
https://lists.apache.org/thread.html/ra503756ced78fdc2136bd33e87cb7553028645b261b1f5c6186a121e%40%3Cjira.kafka.apache.org%3E
https://lists.apache.org/thread.html/rb06c1e766aa45ee422e8261a8249b561784186483e8f742ea627bda4%40%3Cdev.kafka.apache.org%3E
https://lists.apache.org/thread.html/rb51d6202ff1a773f96eaa694b7da4ad3f44922c40b3d4e1a19c2f325%40%3Ccommits.pulsar.apache.org%3E
https://lists.apache.org/thread.html/rb592033a2462548d061a83ac9449c5ff66098751748fcd1e2d008233%40%3Cissues.zookeeper.apache.org%3E
https://lists.apache.org/thread.html/rc0087125cb15b4b78e44000f841cd37fefedfda942fd7ddf3ad1b528%40%3Cissues.zookeeper.apache.org%3E
https://lists.apache.org/thread.html/rc488f80094872ad925f0c73d283d4c00d32def81977438e27a3dc2bb%40%3Cjira.kafka.apache.org%3E
https://lists.apache.org/thread.html/rcd163e421273e8dca1c71ea298dce3dd11b41d51c3a812e0394e6a5d%40%3Ccommits.pulsar.apache.org%3E
https://lists.apache.org/thread.html/rdba4f78ac55f803893a1a2265181595e79e3aa027e2e651dfba98c18%40%3Cjira.kafka.apache.org%3E
https://lists.debian.org/debian-lts-announce/2021/02/msg00016.html	Mailing List Third Party Advisory
https://security.netapp.com/advisory/ntap-20220210-0011/	Third Party Advisory
https://www.debian.org/security/2021/dsa-4885	Third Party Advisory
https://www.oracle.com//security-alerts/cpujul2021.html	Third Party Advisory
https://www.oracle.com/security-alerts/cpuApr2021.html	Patch Third Party Advisory
https://www.oracle.com/security-alerts/cpuapr2022.html	Patch Third Party Advisory
https://www.oracle.com/security-alerts/cpuoct2021.html	Patch Third Party Advisory

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-668	Exposure of Resource to Wrong Sphere	NIST
CWE-378	Creation of Temporary File With Insecure Permissions	GitHub, Inc.
CWE-379	Creation of Temporary File in Directory with Insecure Permissions	GitHub, Inc.

Known Affected Software Configurations Switch to CPE 2.2

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Change History

34 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2021-21290
NVD Published Date:
02/08/2021
NVD Last Modified:
11/06/2023
Source:
GitHub, Inc.

CVE-2021-21290 Detail

Description

Severity

References to Advisories, Solutions, and Tools

Weakness Enumeration

Known Affected Software Configurations Switch to CPE 2.2

CPEs loading, please wait.

Change History

CVE Modified by GitHub, Inc. 5/14/2024 4:09:34 AM

CVE Modified by GitHub, Inc. 11/06/2023 10:29:43 PM

Modified Analysis by NIST 5/12/2022 10:33:36 AM

CVE Modified by GitHub, Inc. 4/19/2022 8:15:42 PM

Modified Analysis by NIST 4/12/2022 2:41:34 PM

CVE Modified by GitHub, Inc. 2/10/2022 5:15:13 AM

Modified Analysis by NIST 12/10/2021 1:12:18 PM

CVE Modified by GitHub, Inc. 10/20/2021 12:15:07 PM

CVE Modified by GitHub, Inc. 10/20/2021 7:15:57 AM

Modified Analysis by NIST 9/14/2021 12:08:43 PM

CVE Modified by GitHub, Inc. 7/20/2021 7:15:27 PM

CVE Modified by GitHub, Inc. 7/15/2021 10:15:12 AM

Modified Analysis by NIST 6/16/2021 9:57:14 AM

CVE Modified by GitHub, Inc. 6/14/2021 2:15:35 PM

Modified Analysis by NIST 6/11/2021 9:41:50 AM

CVE Modified by GitHub, Inc. 4/06/2021 8:15:16 AM

CVE Modified by GitHub, Inc. 4/02/2021 12:15:13 PM

CVE Modified by GitHub, Inc. 3/30/2021 1:15:17 PM

CVE Modified by GitHub, Inc. 3/30/2021 7:15:12 AM

CVE Modified by GitHub, Inc. 3/30/2021 12:15:11 AM

CVE Modified by GitHub, Inc. 3/29/2021 1:15:15 PM

CVE Modified by GitHub, Inc. 3/29/2021 10:15:17 AM

Modified Analysis by NIST 3/26/2021 4:35:11 PM

CVE Modified by GitHub, Inc. 3/17/2021 3:15:12 PM

Modified Analysis by NIST 3/17/2021 11:12:51 AM

CVE Modified by GitHub, Inc. 3/17/2021 8:15:12 AM

CVE Modified by GitHub, Inc. 3/16/2021 2:15:12 PM

CVE Modified by GitHub, Inc. 3/11/2021 5:15:12 PM

CVE Modified by GitHub, Inc. 3/03/2021 5:15:13 AM

CVE Modified by GitHub, Inc. 3/03/2021 1:15:14 AM

CVE Modified by GitHub, Inc. 3/01/2021 11:15:13 AM

CVE Modified by GitHub, Inc. 3/01/2021 7:15:13 AM

Initial Analysis by NIST 2/17/2021 10:50:15 AM

CVE Modified by GitHub, Inc. 2/11/2021 1:15:16 PM

Quick Info