strongSwan up to 5.7.0 gmp Plugin Crafted Certificate memory corruption
CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
---|---|---|
7.2 | $0-$5k | 0.00 |
A vulnerability was found in strongSwan up to 5.7.0 (Network Encryption Software). It has been rated as critical. This issue affects an unknown part of the component gmp Plugin. The manipulation as part of a Crafted Certificate leads to a memory corruption vulnerability. Using CWE to declare the problem leads to CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. Impacted is confidentiality, integrity, and availability. The summary by CVE is:
The gmp plugin in strongSwan before 5.7.1 has a Buffer Overflow via a crafted certificate.
The bug was discovered 10/01/2018. The weakness was disclosed 10/03/2018 (Website). The advisory is shared at lists.debian.org. The identification of this vulnerability is CVE-2018-17540 since 09/26/2018. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Neither technical details nor an exploit are publicly available.
The vulnerability scanner Nessus provides a plugin with the ID 117868 (Ubuntu 14.04 LTS / 16.04 LTS / 18.04 LTS : strongswan vulnerability (USN-3774-1)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Ubuntu Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 176497 (Debian Security Update for strongswan (DSA 4309-1)).
Upgrading to version 5.7.1 eliminates this vulnerability. A possible mitigation has been published even before and not after the disclosure of the vulnerability.
The vulnerability is also documented in the vulnerability database at Tenable (117868).
Product
Type
Name
Version
License
CPE 2.3
CPE 2.2
CVSSv4
VulDB CVSS-B Score: 🔍VulDB CVSS-BT Score: 🔍
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CVSSv3
VulDB Meta Base Score: 7.4VulDB Meta Temp Score: 7.2
VulDB Base Score: 7.3
VulDB Temp Score: 7.0
VulDB Vector: 🔍
VulDB Reliability: 🔍
NVD Base Score: 7.5
NVD Vector: 🔍
CVSSv2
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VulDB Base Score: 🔍
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Exploiting
Class: Memory corruptionCWE: CWE-119
CAPEC: 🔍
ATT&CK: 🔍
Local: No
Remote: Yes
Availability: 🔍
Status: Not defined
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EPSS Percentile: 🔍
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Current Price Estimation: 🔍
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Nessus ID: 117868
Nessus Name: Ubuntu 14.04 LTS / 16.04 LTS / 18.04 LTS : strongswan vulnerability (USN-3774-1)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍
Qualys ID: 🔍
Qualys Name: 🔍
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: UpgradeStatus: 🔍
0-Day Time: 🔍
Upgrade: strongSwan 5.7.1
Timeline
09/26/2018 🔍10/01/2018 🔍
10/01/2018 🔍
10/02/2018 🔍
10/03/2018 🔍
10/03/2018 🔍
10/04/2018 🔍
05/22/2023 🔍
Sources
Advisory: USN-3774-1Status: Confirmed
Confirmation: 🔍
CVE: CVE-2018-17540 (🔍)
OVAL: 🔍
Entry
Created: 10/04/2018 07:56Updated: 05/22/2023 08:06
Changes: 10/04/2018 07:56 (72), 03/29/2020 14:42 (2), 05/22/2023 08:06 (4)
Complete: 🔍
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