ARM mbed TLS up to 2.1.13/2.7.4/2.11.x CBC cryptographic issues
CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
---|---|---|
6.5 | $0-$5k | 0.00 |
A vulnerability, which was classified as critical, has been found in ARM mbed TLS up to 2.1.13/2.7.4/2.11.x. This issue affects some unknown processing of the component CBC. The manipulation with an unknown input leads to a cryptographic issues vulnerability. Using CWE to declare the problem leads to CWE-310. Impacted is confidentiality, integrity, and availability. The summary by CVE is:
ARM mbed TLS before 2.12.0, before 2.7.5, and before 2.1.14 allows remote attackers to achieve partial plaintext recovery (for a CBC based ciphersuite) via a timing-based side-channel attack. This vulnerability exists because of an incorrect fix (with a wrong SHA-384 calculation) for CVE-2013-0169.
The bug was discovered 07/25/2018. The weakness was presented 07/28/2018 (Website). It is possible to read the advisory at tls.mbed.org. The identification of this vulnerability is CVE-2018-0497 since 11/26/2017. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1600 according to MITRE ATT&CK.
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 111659 (FreeBSD : mbed TLS -- plaintext recovery vulnerabilities (f4876dd4-9ca8-11e8-aa17-0011d823eebd)), 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 176479 (Debian Security Update for mbedtls (DSA 4296-1)).
Upgrading to version 2.1.14, 2.7.5 or 2.12.0 eliminates this vulnerability. A possible mitigation has been published 2 weeks after the disclosure of the vulnerability.
The vulnerability is also documented in the vulnerability database at Tenable (111659). See VDB-122304 for similar entry.
Product
Name
Version
- 2.0
- 2.1
- 2.1.0
- 2.1.1
- 2.1.2
- 2.1.3
- 2.1.4
- 2.1.5
- 2.1.6
- 2.1.7
- 2.1.8
- 2.1.9
- 2.1.10
- 2.1.11
- 2.1.12
- 2.1.13
- 2.2
- 2.3
- 2.4
- 2.5
- 2.6
- 2.7
- 2.7.0
- 2.7.1
- 2.7.2
- 2.7.3
- 2.7.4
- 2.8
- 2.9
- 2.10
- 2.11
License
CPE 2.3
CPE 2.2
CVSSv4
VulDB CVSS-B Score: 🔍VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
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CVSSv3
VulDB Meta Base Score: 6.6VulDB Meta Temp Score: 6.5
VulDB Base Score: 7.3
VulDB Temp Score: 7.0
VulDB Vector: 🔍
VulDB Reliability: 🔍
NVD Base Score: 5.9
NVD Vector: 🔍
CVSSv2
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Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
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unlock | unlock | unlock | unlock | unlock | unlock |
unlock | unlock | unlock | unlock | unlock | unlock |
unlock | unlock | unlock | unlock | unlock | unlock |
VulDB Base Score: 🔍
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Exploiting
Class: Cryptographic issuesCWE: CWE-310
CAPEC: 🔍
ATT&CK: 🔍
Local: No
Remote: Yes
Availability: 🔍
Status: Not defined
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EPSS Percentile: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔍
0-Day | unlock | unlock | unlock | unlock |
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Today | unlock | unlock | unlock | unlock |
Nessus ID: 111659
Nessus Name: FreeBSD : mbed TLS -- plaintext recovery vulnerabilities (f4876dd4-9ca8-11e8-aa17-0011d823eebd)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍
Qualys ID: 🔍
Qualys Name: 🔍
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: UpgradeStatus: 🔍
Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍
Upgrade: ARM mbed TLS 2.1.14/2.7.5/2.12.0
Timeline
11/26/2017 🔍07/25/2018 🔍
07/28/2018 🔍
07/28/2018 🔍
07/29/2018 🔍
08/10/2018 🔍
08/13/2018 🔍
04/27/2023 🔍
Sources
Advisory: USN-4267-1Status: Not defined
Confirmation: 🔍
CVE: CVE-2018-0497 (🔍)
OVAL: 🔍
See also: 🔍
Entry
Created: 07/29/2018 12:17Updated: 04/27/2023 15:17
Changes: 07/29/2018 12:17 (74), 03/11/2020 08:25 (3), 04/27/2023 15:17 (4)
Complete: 🔍
Cache ID: 3:A7A:103
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