VDB-111900 · CVE-2018-5710 · Qualys 296029

MIT Kerberos 5 up to 1.16 Key Distribution Center ldap_principal2.c null pointer dereference

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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5.4$0-$5k0.00

Summaryinfo

A vulnerability described as problematic has been identified in MIT Kerberos 5 up to 1.16. This affects an unknown function in the library plugins/kdb/ldap/libkdb_ldap/ldap_principal2.c of the component Key Distribution Center. The manipulation results in null pointer dereference. This vulnerability is known as CVE-2018-5710. It is possible to launch the attack remotely. No exploit is available.

Detailsinfo

A vulnerability, which was classified as problematic, was found in MIT Kerberos 5 up to 1.16 (Network Authentication Software). Affected is an unknown code block in the library plugins/kdb/ldap/libkdb_ldap/ldap_principal2.c of the component Key Distribution Center. The manipulation with an unknown input leads to a null pointer dereference vulnerability. CWE is classifying the issue as 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. This is going to have an impact on availability. CVE summarizes:

An issue was discovered in MIT Kerberos 5 (aka krb5) through 1.16. The pre-defined function "strlen" is getting a "NULL" string as a parameter value in plugins/kdb/ldap/libkdb_ldap/ldap_principal2.c in the Key Distribution Center (KDC), which allows remote authenticated users to cause a denial of service (NULL pointer dereference) via a modified kadmin client.

The bug was discovered 01/15/2018. The weakness was published 01/16/2018 (Website). The advisory is shared for download at github.com. This vulnerability is traded as CVE-2018-5710 since 01/16/2018. The exploitability is told to be easy. It is possible to launch the attack remotely. The requirement for exploitation is a authentication. There are known technical details, but no exploit is available.

The vulnerability was handled as a non-public zero-day exploit for at least 1 days. During that time the estimated underground price was around $0-$5k. The commercial vulnerability scanner Qualys is able to test this issue with plugin 296029 (Solaris 11.3 Support Repository Update (SRU) 35.6.0 Missing).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

Similar entry is available at VDB-111899. Once again VulDB remains the best source for vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.4
VulDB Meta Temp Score: 5.4

VulDB Base Score: 4.3
VulDB Temp Score: 4.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.5
NVD Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Null pointer dereference
CWE: CWE-476 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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OpenVAS ID: 103029
OpenVAS Name: Kerberos5 through 1.16 Multiple Vulnerabilities
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

01/15/2018 🔍
01/16/2018 +1 days 🔍
01/16/2018 +0 days 🔍
01/16/2018 +0 days 🔍
01/16/2018 +0 days 🔍
10/24/2024 +2473 days 🔍

Sourcesinfo

Vendor: mit.edu

Advisory: github.com
Status: Not defined

CVE: CVE-2018-5710 (🔍)
GCVE (CVE): GCVE-0-2018-5710
GCVE (VulDB): GCVE-100-111900
See also: 🔍

Entryinfo

Created: 01/16/2018 15:58
Updated: 10/24/2024 07:33
Changes: 01/16/2018 15:58 (63), 12/29/2019 08:47 (1), 10/24/2024 07:33 (17)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

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