CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
---|---|---|
6.4 | $0-$5k | 0.00 |
A vulnerability, which was classified as problematic, was found in Nettle (affected version not known). This affects some unknown functionality of the component Decryption Handler. The manipulation with an unknown input leads to a cryptographic issues vulnerability. CWE is classifying the issue as CWE-310. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:
The RSA and DSA decryption code in Nettle makes it easier for attackers to discover private keys via a cache side channel attack.
The bug was discovered 11/02/2016. The weakness was published 04/14/2017 (oss-sec). The advisory is shared at openwall.com. This vulnerability is uniquely identified as CVE-2016-6489 since 07/28/2016. The exploitability is told to be difficult. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1600 for this issue.
The vulnerability was handled as a non-public zero-day exploit for at least 23 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 95329 (CentOS 7 : nettle (CESA-2016:2582)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family CentOS Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 236153 (Red Hat Update for nettle (RHSA-2016:2582)).
Upgrading 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 (95329). Similar entries are available at 81072 and 81073.
Product
Name
CPE 2.3
CPE 2.2
CVSSv4
VulDB CVSS-B Score: 🔍VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 6.5VulDB Meta Temp Score: 6.4
VulDB Base Score: 5.6
VulDB Temp Score: 5.4
VulDB Vector: 🔍
VulDB Reliability: 🔍
NVD Base Score: 7.5
NVD Vector: 🔍
CVSSv2
AV | AC | Au | C | I | A |
---|---|---|---|---|---|
💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
---|---|---|---|---|---|
unlock | unlock | unlock | unlock | unlock | unlock |
unlock | unlock | unlock | unlock | unlock | unlock |
unlock | unlock | unlock | unlock | unlock | unlock |
VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍
NVD Base Score: 🔍
Exploiting
Class: Cryptographic issuesCWE: CWE-310
CAPEC: 🔍
ATT&CK: 🔍
Local: No
Remote: Yes
Availability: 🔍
Status: Not defined
EPSS Score: 🔍
EPSS Percentile: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔍
0-Day | unlock | unlock | unlock | unlock |
---|---|---|---|---|
Today | unlock | unlock | unlock | unlock |
Nessus ID: 95329
Nessus Name: CentOS 7 : nettle (CESA-2016:2582)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍
OpenVAS ID: 867773
OpenVAS Name: Fedora Update for mingw-nettle FEDORA-2016-762cb57c92
OpenVAS File: 🔍
OpenVAS Family: 🔍
Qualys ID: 🔍
Qualys Name: 🔍
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: UpgradeStatus: 🔍
0-Day Time: 🔍
Patch: git.lysator.liu.se
Timeline
07/28/2016 🔍11/02/2016 🔍
11/25/2016 🔍
11/28/2016 🔍
04/14/2017 🔍
04/14/2017 🔍
04/15/2017 🔍
11/29/2022 🔍
Sources
Advisory: RHSA-2016:2582Status: Not defined
Confirmation: 🔍
CVE: CVE-2016-6489 (🔍)
OSVDB: - CVE-2016-6489 - Nettle - Side Channel Issue
See also: 🔍
Entry
Created: 04/15/2017 15:29Updated: 11/29/2022 14:00
Changes: 04/15/2017 15:29 (69), 08/31/2020 12:59 (4), 11/29/2022 13:48 (5), 11/29/2022 13:54 (1), 11/29/2022 14:00 (1)
Complete: 🔍
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