CVE-2012-1012

Ubuntu Security Notice USN-1520-1

Severity Score

8.8

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

server/server_stubs.c in the kadmin protocol implementation in MIT Kerberos 5 (aka krb5) 1.10 before 1.10.1 does not properly restrict access to (1) SET_STRING and (2) GET_STRINGS operations, which might allow remote authenticated administrators to modify or read string attributes by leveraging the global list privilege.

server/server_stubs.c en la implementación del protocolo kadmin en MIT Kerberos 5 (también conocido como krb5) v1.10 antes de v1.10.1 no restringe debidamente el acceso a las operaciones (1) SET_STRING y (2) GET_STRINGS, lo que podría permitir modificar o leer atributos de cadena a los administradores remotos autenticados al aprovechar el privilegio "global list".

Emmanuel Bouillon discovered that the MIT krb5 Key Distribution Center (KDC) daemon could free an uninitialized pointer when handling a malformed AS-REQ message. A remote unauthenticated attacker could use this to cause a denial of service or possibly execute arbitrary code. Emmanuel Bouillon discovered that the MIT krb5 Key Distribution Center (KDC) daemon could dereference an uninitialized pointer while handling a malformed AS-REQ message. A remote unauthenticated attacker could use this to cause a denial of service or possibly execute arbitrary code. This issue only affected Ubuntu 12.04 LTS. Various other issues were also addressed.

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Network

Attack Complexity

Low

Authentication

Single

Confidentiality

Partial

Integrity

Partial

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2012-02-07 CVE Reserved
2012-06-07 CVE Published
2024-09-17 CVE Updated
2025-03-30 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-264: Permissions, Privileges, and Access Controls

CAPEC

References (4)

URL	Tag	Source
http://krbdev.mit.edu/rt/Ticket/Display.html?user=guest&pass=guest&id=7093	X_refsource_confirm
http://src.mit.edu/fisheye/changelog/krb5/?cs=25704	X_refsource_confirm
http://web.mit.edu/kerberos/krb5-1.10	X_refsource_confirm
https://bugzilla.redhat.com/show_bug.cgi?id=796438	X_refsource_confirm

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Mit Search vendor "Mit"		Kerberos 5 Search vendor "Mit" for product "Kerberos 5"				1.10 Search vendor "Mit" for product "Kerberos 5" and version "1.10"		-		Affected
Mit Search vendor "Mit"		Kerberos 5 Search vendor "Mit" for product "Kerberos 5"				1.10.1 Search vendor "Mit" for product "Kerberos 5" and version "1.10.1"		-		Affected