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Vulnerability Details : CVE-2010-4020

MIT 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.
Publish Date : 2010-12-02 Last Update Date : 2020-01-21
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- CVSS Scores & Vulnerability Types

CVSS Score
3.5
Confidentiality Impact None (There is no impact to the confidentiality of the system.)
Integrity Impact Partial (Modification of some system files or information is possible, but the attacker does not have control over what can be modified, or the scope of what the attacker can affect is limited.)
Availability Impact None (There is no impact to the availability of the system.)
Access Complexity Medium (The access conditions are somewhat specialized. Some preconditions must be satistified to exploit)
Authentication ???
Gained Access None
Vulnerability Type(s) Gain privileges
CWE ID 310

- Additional Vendor Supplied Data

Vendor Impact CVSS Score CVSS Vector Report Date Publish Date
Redhat moderate
3.5
AV:N/AC:M/Au:S/C:N/I:P/A:N 2010-11-01 2010-11-30
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- Related OVAL Definitions

Title Definition Id Class Family
CVE-2010-4020 oval:org.opensuse.security:def:20104020 unix
DEPRECATED: ELSA-2011-0200 -- krb5 security update (important) oval:org.mitre.oval:def:28010 unix
ELSA-2010:0925: krb5 security and bug fix update (Important) oval:org.mitre.oval:def:23502 unix
RHSA-2010:0925: krb5 security and bug fix update (Important) oval:org.mitre.oval:def:21983 unix
RHSA-2010:0925: krb5 security and bug fix update (Important) oval:com.redhat.rhsa:def:20100925 unix
VMware ESXi and ESX Denial of Service and third party updates for Likewise components and ESX Service Console oval:org.mitre.oval:def:20317 unix
OVAL (Open Vulnerability and Assessment Language) definitions define exactly what should be done to verify a vulnerability or a missing patch. Check out the OVAL definitions if you want to learn what you should do to verify a vulnerability.

- Products Affected By CVE-2010-4020

# Product Type Vendor Product Version Update Edition Language
1 Application MIT Kerberos 5 1.8 * * * Version Details Vulnerabilities
2 Application MIT Kerberos 5 1.8.1 * * * Version Details Vulnerabilities
3 Application MIT Kerberos 5 1.8.2 * * * Version Details Vulnerabilities
4 Application MIT Kerberos 5 1.8.3 * * * Version Details Vulnerabilities

- Number Of Affected Versions By Product

Vendor Product Vulnerable Versions
MIT Kerberos 5 4

- References For CVE-2010-4020

http://www.securityfocus.com/archive/1/514953/100/0/threaded
BUGTRAQ 20101130 MITKRB5-SA-2010-007 Multiple checksum handling vulnerabilities [CVE-2010-1324 CVE-2010-1323 CVE-2010-4020 CVE-2010-4021]
http://www.securityfocus.com/archive/1/517739/100/0/threaded
BUGTRAQ 20110428 VMSA-2011-0007 VMware ESXi and ESX Denial of Service and third party updates for Likewise components and ESX Service Console
http://lists.vmware.com/pipermail/security-announce/2011/000133.html
MLIST [security-announce] 20110428 VMSA-2011-0007 VMware ESXi and ESX Denial of Service and third party updates for Likewise components and ESX Service Console
http://kb.vmware.com/kb/1035108 CONFIRM
http://support.apple.com/kb/HT4581 CONFIRM
http://lists.apple.com/archives/security-announce/2011/Mar/msg00006.html
APPLE APPLE-SA-2011-03-21-1
http://www.ubuntu.com/usn/USN-1030-1
UBUNTU USN-1030-1
http://lists.opensuse.org/opensuse-security-announce/2010-12/msg00000.html
SUSE SUSE-SR:2010:023
http://www.vmware.com/security/advisories/VMSA-2011-0007.html CONFIRM
http://lists.fedoraproject.org/pipermail/package-announce/2010-December/051976.html
FEDORA FEDORA-2010-18409
http://lists.opensuse.org/opensuse-security-announce/2010-12/msg00006.html
SUSE SUSE-SR:2010:024
http://www.mandriva.com/security/advisories?name=MDVSA-2010:246
MANDRIVA MDVSA-2010:246
http://osvdb.org/69608
OSVDB 69608 MIT Kerberos 5 (krb5) RC4 Key-derivation Checksums One-byte Stream-cipher Operation Signature Forgery Issue MIT Kerberos 5 (krb5) RC4 Key-derivation Checksums One-byte Stream-cipher Operation Signature Forgery Issue
http://www.securityfocus.com/bid/45117
BID 45117 MIT Kerberos Checksum AD-SIGNEDPATH and AD-KDC-ISSUED Security Bypass Vulnerability Release Date:2013-09-26
http://www.vupen.com/english/advisories/2010/3118
VUPEN ADV-2010-3118
http://www.vupen.com/english/advisories/2010/3094
VUPEN ADV-2010-3094
http://lists.fedoraproject.org/pipermail/package-announce/2010-December/051999.html
FEDORA FEDORA-2010-18425
http://www.securitytracker.com/id?1024803
SECTRACK 1024803
http://www.vupen.com/english/advisories/2010/3095
VUPEN ADV-2010-3095
http://secunia.com/advisories/42399
SECUNIA 42399
http://www.oracle.com/technetwork/topics/security/cpujul2015-2367936.html CONFIRM
http://www.redhat.com/support/errata/RHSA-2010-0925.html
REDHAT RHSA-2010:0925
http://web.mit.edu/kerberos/advisories/MITKRB5-SA-2010-007.txt CONFIRM

- Metasploit Modules Related To CVE-2010-4020

There are not any metasploit modules related to this CVE entry (Please visit www.metasploit.com for more information)


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