CVE-2010-4020

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Summary

CVECVE-2010-4020
StatePUBLISHED
Assignermitre
Source PriorityCVE Program / NVD first with legacy fallback
Published2010-12-02 16:22:21 UTC
Updated2026-04-29 01:13:23 UTC
DescriptionMIT Kerberos 5 (aka krb5) 1.8.x through 1.8.3 does not reject RC4 key-derivation checksums, which might allow remote authenticated users to forge a (1) AD-SIGNEDPATH or (2) AD-KDC-ISSUED signature, and possibly gain privileges, by leveraging the small key space that results from certain one-byte stream-cipher operations.

Risk And Classification

Primary CVSS: v3.0 6.3 MEDIUM from [email protected]

CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L

Problem Types: CWE-310 | n/a

VersionSourceTypeScoreSeverityVector
3.0[email protected]Primary6.3MEDIUMCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
2.0[email protected]Primary3.5AV:N/AC:M/Au:S/C:N/I:P/A:N

CVSS v3.0 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
Low
Availability
Low

CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L

CVSS v2.0 Breakdown

Access Vector
Network
Access Complexity
Medium
Authentication
Single
Confidentiality
None
Integrity
Partial
Availability
None

AV:N/AC:M/Au:S/C:N/I:P/A:N

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Mit Kerberos 5 1.8 All All All
Application Mit Kerberos 5 1.8.1 All All All
Application Mit Kerberos 5 1.8.2 All All All
Application Mit Kerberos 5 1.8.3 All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Na N/a affected n/a Not specified

References

ReferenceSourceLinkTags
[SECURITY] Fedora 14 Update: krb5-1.8.2-7.fc14 af854a3a-2127-422b-91ae-364da2661108 lists.fedoraproject.org
SecurityFocus af854a3a-2127-422b-91ae-364da2661108 www.securityfocus.com
VMSA-2011-0007 af854a3a-2127-422b-91ae-364da2661108 www.vmware.com
SecurityFocus af854a3a-2127-422b-91ae-364da2661108 www.securityfocus.com
osvdb.org/69608 af854a3a-2127-422b-91ae-364da2661108 osvdb.org
web.mit.edu/kerberos/advisories/MITKRB5-SA-2010-007.txt af854a3a-2127-422b-91ae-364da2661108 web.mit.edu Vendor Advisory
Red Hat update for krb5 - Secunia.com af854a3a-2127-422b-91ae-364da2661108 secunia.com Vendor Advisory
APPLE-SA-2011-03-21-1 Mac OS X v10.6.7 and Security Update 2011-001 af854a3a-2127-422b-91ae-364da2661108 lists.apple.com
Oracle Critical Patch Update - July 2015 af854a3a-2127-422b-91ae-364da2661108 www.oracle.com Patch, Vendor Advisory
VMware KB: VMware ESXi 4.1 Patch ESXi410-201104401-SG: Updates Firmware af854a3a-2127-422b-91ae-364da2661108 kb.vmware.com
Webmail : Solution de messagerie professionnelle - OVHcloud- OVH af854a3a-2127-422b-91ae-364da2661108 www.vupen.com
[SECURITY] Fedora 13 Update: krb5-1.7.1-16.fc13 af854a3a-2127-422b-91ae-364da2661108 lists.fedoraproject.org
Webmail : Solution de messagerie professionnelle - OVHcloud- OVH af854a3a-2127-422b-91ae-364da2661108 www.vupen.com
Support / Security / Advisories / / MDVSA-2010:246 | Mandriva af854a3a-2127-422b-91ae-364da2661108 www.mandriva.com
MIT Kerberos Checksum Handling Errors May Let Remote or Remote Authenticated Users Forge/Modify Certain Data - SecurityTracker af854a3a-2127-422b-91ae-364da2661108 www.securitytracker.com
[security-announce] SUSE Security Summary Report: SUSE-SR:2010:023 af854a3a-2127-422b-91ae-364da2661108 lists.opensuse.org
Webmail : Solution de messagerie professionnelle - OVHcloud- OVH af854a3a-2127-422b-91ae-364da2661108 www.vupen.com
USN-1030-1: Kerberos vulnerabilities | Ubuntu af854a3a-2127-422b-91ae-364da2661108 www.ubuntu.com
About the security content of Mac OS X v10.6.7 and Security Update 2011-001 af854a3a-2127-422b-91ae-364da2661108 support.apple.com
[security-announce] SUSE Security Summary Report: SUSE-SR:2010:024 af854a3a-2127-422b-91ae-364da2661108 lists.opensuse.org
Support af854a3a-2127-422b-91ae-364da2661108 www.redhat.com
[Security-announce] VMSA-2011-0007 VMware ESXi and ESX Denial of Service and third party updates for Likewise components and ESX Service Console af854a3a-2127-422b-91ae-364da2661108 lists.vmware.com
MIT Kerberos Checksum AD-SIGNEDPATH and AD-KDC-ISSUED Security Bypass Vulnerability af854a3a-2127-422b-91ae-364da2661108 www.securityfocus.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

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