IBM DB2 9.7/10.1/10.5/11.1 GSKit fork System Calls key management

CVSS Meta Temp Score
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CTI Interest Score
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8.5$5k-$25k0.00

Summaryinfo

A vulnerability classified as very critical was found in IBM DB2 9.7/10.1/10.5/11.1. The affected element is the function fork of the component GSKit. The manipulation as part of System Calls results in key management. This vulnerability is reported as CVE-2018-1426. The attack can be launched remotely. No exploit exists.

Detailsinfo

A vulnerability classified as very critical has been found in IBM DB2 9.7/10.1/10.5/11.1 (Database Software). Affected is the function fork of the component GSKit. The manipulation as part of a System Calls leads to a key management vulnerability. CWE is classifying the issue as CWE-320. This is going to have an impact on confidentiality, and integrity. CVE summarizes:

IBM GSKit (IBM DB2 for Linux, UNIX and Windows 9.7, 10.1, 10.5, and 11.1) duplicates the PRNG state across fork() system calls when multiple ICC instances are loaded which could result in duplicate Session IDs and a risk of duplicate key material. IBM X-Force ID: 139071.

The bug was discovered 03/15/2018. The weakness was disclosed 03/22/2018 by OSS-Fuzz (Website). The advisory is shared for download at ibm.com. This vulnerability is traded as CVE-2018-1426 since 12/13/2017. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. There are known technical details, but no exploit is available. The current price for an exploit might be approx. USD $5k-$25k (estimation calculated on 02/22/2023). The MITRE ATT&CK project declares the attack technique as T1600.001.

The vulnerability was handled as a non-public zero-day exploit for at least 7 days. During that time the estimated underground price was around $5k-$25k. The commercial vulnerability scanner Qualys is able to test this issue with plugin 87335 (IBM HTTP Server Multiple Vulnerabilities(swg22015347)).

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

The vulnerability is also documented in the vulnerability database at SecurityFocus (BID 95814†). The entries VDB-81145, VDB-90006, VDB-93151 and VDB-96038 are pretty similar. VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.5
VulDB Meta Temp Score: 8.5

VulDB Base Score: 9.1
VulDB Temp Score: 9.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 9.1
NVD Vector: 🔍

CNA Base Score: 7.4
CNA Vector (IBM Corporation): 🔍

CVSSv2info

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VulDB Base Score: 🔍
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Exploitinginfo

Class: Key management
CWE: CWE-320
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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Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

01/26/2017 🔍
12/13/2017 +321 days 🔍
03/15/2018 +92 days 🔍
03/22/2018 +7 days 🔍
03/22/2018 +0 days 🔍
03/23/2018 +1 days 🔍
02/22/2023 +1797 days 🔍

Sourcesinfo

Vendor: ibm.com

Advisory: ibm.com
Researcher: OSS-Fuzz project (OSS-Fuzz)
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2018-1426 (🔍)
GCVE (CVE): GCVE-0-2018-1426
GCVE (VulDB): GCVE-100-114912
X-Force: 139071
SecurityFocus: 95814 - OpenSSL CVE-2017-3732 Information Disclosure Vulnerability
SecurityTracker: 1041012

See also: 🔍

Entryinfo

Created: 03/23/2018 10:03
Updated: 02/22/2023 15:35
Changes: 03/23/2018 10:03 (63), 01/15/2020 20:53 (5), 02/05/2021 17:36 (3), 02/05/2021 17:41 (1), 02/05/2021 17:43 (1), 02/22/2023 15:35 (12)
Complete: 🔍
Cache ID: 216::103

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