CVE-2021-30640

Published on: 07/12/2021 12:00:00 AM UTC

Last Modified on: 10/20/2021 11:16:00 AM UTC

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

Certain versions of Tomcat from Apache contain the following vulnerability:

A vulnerability in the JNDI Realm of Apache Tomcat allows an attacker to authenticate using variations of a valid user name and/or to bypass some of the protection provided by the LockOut Realm. This issue affects Apache Tomcat 10.0.0-M1 to 10.0.5; 9.0.0.M1 to 9.0.45; 8.5.0 to 8.5.65.

  • CVE-2021-30640 has been assigned by URL Logo [email protected] to track the vulnerability - currently rated as MEDIUM severity.
  • Affected Vendor/Software: URL Logo Apache Software Foundation - Apache Tomcat version = 10.0.0-M1 to 10.0.5
  • Affected Vendor/Software: URL Logo Apache Software Foundation - Apache Tomcat version = 9.0.0.M1 to 9.0.45
  • Affected Vendor/Software: URL Logo Apache Software Foundation - Apache Tomcat version = 8.5.0 to 8.5.65
  • Affected Vendor/Software: URL Logo Apache Software Foundation - Apache Tomcat version = 7.0.0 to 7.0.108

CVSS3 Score: 6.5 - MEDIUM

Attack
Vector
Attack
Complexity
Privileges
Required
User
Interaction
NETWORK HIGH NONE NONE
Scope Confidentiality
Impact
Integrity
Impact
Availability
Impact
UNCHANGED LOW HIGH NONE

CVSS2 Score: 5.8 - MEDIUM

Access
Vector
Access
Complexity
Authentication
NETWORK MEDIUM NONE
Confidentiality
Impact
Integrity
Impact
Availability
Impact
PARTIAL PARTIAL NONE

CVE References

Description Tags Link
July 2021 Apache Tomcat Vulnerabilities in NetApp Products | NetApp Product Security security.netapp.com
text/html
URL Logo CONFIRM security.netapp.com/advisory/ntap-20210827-0007/
Oracle Critical Patch Update Advisory - July 2021 Third Party Advisory
www.oracle.com
text/html
URL Logo MISC www.oracle.com//security-alerts/cpujul2021.html
Oracle Critical Patch Update Advisory - October 2021 www.oracle.com
text/html
URL Logo MISC www.oracle.com/security-alerts/cpuoct2021.html
Debian -- Security Information -- DSA-4986-1 tomcat9 www.debian.org
Depreciated Link
text/html
URL Logo DEBIAN DSA-4986
[SECURITY] [DLA 2733-1] tomcat8 security update lists.debian.org
text/html
URL Logo MLIST [debian-lts-announce] 20210805 [SECURITY] [DLA 2733-1] tomcat8 security update
Pony Mail! lists.apache.org
text/html
URL Logo MISC lists.apache.org/thread.html/r59f9ef03929d32120f91f4ea7e6e79edd5688d75d0a9b65fd26d1fe8%40%3Cannounce.tomcat.apache.org%3E
Debian -- Security Information -- DSA-4952-1 tomcat9 www.debian.org
Depreciated Link
text/html
URL Logo DEBIAN DSA-4952

Related QID Numbers

  • 150366 Apache Tomcat Authentication Vulnerability (CVE-2021-30640)
  • 178743 Debian Security Update for tomcat8 (DLA 2733-1)
  • 178746 Debian Security Update for tomcat9 (DSA 4952-1)
  • 352801 Amazon Linux Security Advisory for tomcat7: ALAS-2021-1534
  • 670731 EulerOS Security Update for tomcat (EulerOS-SA-2021-2489)
  • 670762 EulerOS Security Update for tomcat (EulerOS-SA-2021-2520)
  • 690074 Free Berkeley Software Distribution (FreeBSD) Security Update for tomcat (8b571fb2-f311-11eb-b12b-fc4dd43e2b6a)
  • 730146 Apache Tomcat Authentication Vulnerability (CVE-2021-30640)
  • 730206 McAfee Web Gateway Multiple Vulnerabilities (WP-3792, WP-4003, WP-4021, WP-4058, WP-4067)

Known Affected Configurations (CPE V2.3)

Type Vendor Product Version Update Edition Language
ApplicationApacheTomcatAllAllAllAll
Operating
System
DebianDebian Linux10.0AllAllAll
Operating
System
DebianDebian Linux9.0AllAllAll
ApplicationOracleCommunications Diameter Signaling RouterAllAllAllAll
  • cpe:2.3:a:apache:tomcat:*:*:*:*:*:*:*:*:
  • cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*:
  • cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*:
  • cpe:2.3:a:oracle:communications_diameter_signaling_router:*:*:*:*:*:*:*:*:

Social Mentions

Source Title Posted (UTC)
Twitter Icon @CVEreport CVE-2021-30640 : A vulnerability in the JNDI Realm of #Apache Tomcat allows an attacker to authenticate using varia… twitter.com/i/web/status/1… 2021-07-12 15:01:32
Twitter Icon @LinInfoSec Tomcat - CVE-2021-30640: lists.apache.org/thread.html/r5… 2021-07-12 16:55:22
Twitter Icon @ottoto2017 #Apache #Tomcat 8.5 のセキュリティ対応が発表された。CVE-2021-30639,CVE-2021-30640, CVE-2021-33037に対応。結局 8.5.69 へのupdateが求められる。私のサイト… twitter.com/i/web/status/1… 2021-07-13 01:05:09
Twitter Icon @omokazuki SIOSセキュリティブログを更新しました。 Apache Tomcatの複数の脆弱性情報(Important: CVE-2021-30639, CVE-2021-33037, Low: CVE-2021-30640 )… twitter.com/i/web/status/1… 2021-07-13 21:34:18
Twitter Icon @fd0 Apache Tomcatの複数の脆弱性情報(Important: CVE-2021-30639, CVE-2021-33037, Low: CVE-2021-30640 ) - security.sios.com security.sios.com/vulnerability/… 2021-07-14 00:12:41
Reddit Logo Icon /r/netcve CVE-2021-30640 2021-07-12 15:41:11
Reddit Logo Icon /r/Python NVDLib, a NVD API wrapper and my first attempt at a library 2021-10-19 20:53:29
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