MIT Kerberos 5-1.9 Key Distribution Center null pointer dereference
CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
---|---|---|
5.3 | $0-$5k | 0.00 |
A vulnerability classified as problematic was found in MIT Kerberos 5-1.9 (Network Authentication Software). This vulnerability affects some unknown processing of the component Key Distribution Center. The manipulation with an unknown input leads to a null pointer dereference vulnerability. The CWE definition for the vulnerability is CWE-476. A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit. As an impact it is known to affect availability. CVE summarizes:
The Key Distribution Center (KDC) in MIT Kerberos 5 (aka krb5) 1.9 allows remote attackers to cause a denial of service (NULL pointer dereference and daemon crash) via a malformed request packet that does not trigger a response packet.
The weakness was published 02/10/2011 with Red Hat (Website). The advisory is shared for download at vupen.com. This vulnerability was named CVE-2011-0283. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. There are neither technical details nor an exploit publicly available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 10/16/2021).
The vulnerability scanner Nessus provides a plugin with the ID 53418 (CentOS 5 : krb5 (CESA-2011:0199)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family CentOS Local Security Checks.
There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product. Furthermore it is possible to detect and prevent this kind of attack with TippingPoint and the filter 11400.
The vulnerability is also documented in the vulnerability database at Tenable (53418). Similar entry is available at 56439.
Product
Type
Vendor
Name
Version
License
CPE 2.3
CPE 2.2
CVSSv4
VulDB CVSS-B Score: 🔍VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 5.3VulDB Meta Temp Score: 5.3
VulDB Base Score: 5.3
VulDB Temp Score: 5.3
VulDB Vector: 🔍
VulDB Reliability: 🔍
CVSSv2
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VulDB Base Score: 🔍
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VulDB Reliability: 🔍
NVD Base Score: 🔍
Exploiting
Class: Null pointer dereferenceCWE: CWE-476 / CWE-404
ATT&CK: Unknown
Local: No
Remote: Yes
Availability: 🔍
Status: Not defined
EPSS Score: 🔍
EPSS Percentile: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔍
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Nessus ID: 53418
Nessus Name: CentOS 5 : krb5 (CESA-2011:0199)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
OpenVAS ID: 69597
OpenVAS Name: FreeBSD Ports: krb5
OpenVAS File: 🔍
OpenVAS Family: 🔍
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: no mitigation knownStatus: 🔍
0-Day Time: 🔍
TippingPoint: 🔍
PaloAlto IPS: 🔍
Fortigate IPS: 🔍
Timeline
01/03/2011 🔍02/08/2011 🔍
02/08/2011 🔍
02/10/2011 🔍
02/10/2011 🔍
02/21/2011 🔍
03/20/2015 🔍
10/16/2021 🔍
Sources
Vendor: mit.eduAdvisory: RHSA-2011:0199⛔
Organization: Red Hat
Status: Not defined
Confirmation: 🔍
CVE: CVE-2011-0283 (🔍)
Vulnerability Center: 29871 - MIT Kerberos 5 1.9 Remote DoS Vulnerability via a Malformed Request Packet, High
SecurityFocus: 46272 - MIT Kerberos KDC Request NULL Pointer Denial Of Service Vulnerability
Secunia: 43260
See also: 🔍
Entry
Created: 03/20/2015 16:16Updated: 10/16/2021 17:25
Changes: 03/20/2015 16:16 (60), 03/16/2017 15:30 (9), 10/16/2021 17:17 (5), 10/16/2021 17:25 (2)
Complete: 🔍
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