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CVE-2010-4020

Good to know:

Date: December 2, 2010

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.

Language: C

Severity Score

6.3

Related Resources (26)

Url: http://www.oracle.com/technetwork/topics/security/cpujul2015-2367936.html

Url: http://www.redhat.com/support/errata/RHSA-2010-0925.html

Url: http://www.securitytracker.com/id?1024803

Url: http://www.securityfocus.com/bid/45117

Url: http://lists.apple.com/archives/security-announce/2011/Mar/msg00006.html

Url: http://www.ubuntu.com/usn/USN-1030-1

Url: http://support.apple.com/kb/HT4581

Url: http://lists.opensuse.org/opensuse-security-announce/2010-12/msg00006.html

Url: http://www.vupen.com/english/advisories/2010/3095

Url: http://www.vupen.com/english/advisories/2010/3094

Url: http://secunia.com/advisories/42399

Url: http://web.mit.edu/kerberos/advisories/MITKRB5-SA-2010-007.txt

Url: https://access.redhat.com/security/cve/CVE-2010-4020

Url: http://www.mandriva.com/security/advisories?name=MDVSA-2010:246

Url: http://www.vupen.com/english/advisories/2010/3118

Url: http://lists.vmware.com/pipermail/security-announce/2011/000133.html

Url: http://osvdb.org/69608

Url: http://www.securityfocus.com/archive/1/514953/100/0/threaded

Url: http://lists.fedoraproject.org/pipermail/package-announce/2010-December/051999.html

Url: http://kb.vmware.com/kb/1035108

Url: http://lists.opensuse.org/opensuse-security-announce/2010-12/msg00000.html

Url: http://lists.fedoraproject.org/pipermail/package-announce/2010-December/051976.html

Url: http://www.securityfocus.com/archive/1/517739/100/0/threaded

Url: http://www.vmware.com/security/advisories/VMSA-2011-0007.html

Url: https://nvd.nist.gov/vuln/detail/CVE-2010-4020

Url: https://www.mend.io/vulnerability-database/CVE-2010-4020

Severity Score

6.3

Weakness Type (CWE)

Cryptographic Issues

CWE-310

Top Fix

Upgrade Version

Upgrade to version kfw-4.0-final,krb5-1.10-alpha1

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CVSS v3.1

Base Score:	6.3
Attack Vector (AV):	NETWORK
Attack Complexity (AC):	LOW
Privileges Required (PR):	LOW
User Interaction (UI):	NONE
Scope (S):	UNCHANGED
Confidentiality (C):	LOW
Integrity (I):	LOW
Availability (A):	LOW

CVSS v2

Base Score:	3.5
Access Vector (AV):	NETWORK
Access Complexity (AC):	MEDIUM
Authentication (AU):	SINGLE
Confidentiality (C):	NONE
Integrity (I):	PARTIAL
Availability (A):	NONE
Additional information:

Mend.io Vulnerability Database

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CVE-2010-4020

Good to know:

Date: December 2, 2010

Language: C

Severity Score

Related Resources (26)

Severity Score

Weakness Type (CWE)

Top Fix

Upgrade Version

CVSS v3.1

CVSS v2

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