strongSwan up to 5.6.0 initialization

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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6.3$0-$5k0.00

Summaryinfo

A vulnerability has been found in strongSwan up to 5.6.0 and classified as problematic. This impacts an unknown function. This manipulation causes initialization. The identification of this vulnerability is CVE-2018-10811. It is possible to initiate the attack remotely. There is no exploit available. The affected component should be upgraded.

Detailsinfo

A vulnerability was found in strongSwan up to 5.6.0 (Network Encryption Software). It has been declared as problematic. Affected by this vulnerability is an unknown part. The manipulation with an unknown input leads to a initialization vulnerability. The CWE definition for the vulnerability is CWE-665. The product does not initialize or incorrectly initializes a resource, which might leave the resource in an unexpected state when it is accessed or used. As an impact it is known to affect availability. The summary by CVE is:

strongSwan 5.6.0 and older allows Remote Denial of Service because of Missing Initialization of a Variable.

The bug was discovered 05/28/2018. The weakness was shared 06/19/2018 by Kevin Backhouse (Website). The advisory is shared at debian.org. This vulnerability is known as CVE-2018-10811 since 05/08/2018. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Neither technical details nor an exploit are publicly available.

The vulnerability was handled as a non-public zero-day exploit for at least 3 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 110274 (FreeBSD : strongswan -- Fix Denial-of-Service Vulnerability strongSwan (CVE-2018-10811, CVE-2018-5388) (7fc3e827-64a5-11e8-aedb-00224d821998)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family FreeBSD Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 176412 (Debian Security Update for strongswan (DSA 4229-1)).

Upgrading eliminates this vulnerability. A possible mitigation has been published before and not just after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (110274) and SecurityFocus (BID 104263†). The entries VDB-118481, VDB-124484 and VDB-124485 are related to this item. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Type

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.4
VulDB Meta Temp Score: 6.3

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Initialization
CWE: CWE-665
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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Nessus ID: 110274
Nessus Name: FreeBSD : strongswan -- Fix Denial-of-Service Vulnerability strongSwan (CVE-2018-10811, CVE-2018-5388) (7fc3e827-64a5-11e8-aedb-00224d821998)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

05/08/2018 🔍
05/23/2018 +15 days 🔍
05/28/2018 +5 days 🔍
05/31/2018 +3 days 🔍
06/01/2018 +1 days 🔍
06/19/2018 +17 days 🔍
06/19/2018 +0 days 🔍
06/20/2018 +1 days 🔍
03/28/2023 +1742 days 🔍

Sourcesinfo

Advisory: USN-3771-1
Researcher: Kevin Backhouse
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2018-10811 (🔍)
GCVE (CVE): GCVE-0-2018-10811
GCVE (VulDB): GCVE-100-119689

OVAL: 🔍

SecurityFocus: 104263 - strongSwan CVE-2018-5388 Buffer Underflow Vulnerability

See also: 🔍

Entryinfo

Created: 06/20/2018 13:34
Updated: 03/28/2023 08:50
Changes: 06/20/2018 13:34 (72), 02/20/2020 13:36 (6), 03/28/2023 08:50 (4)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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