CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
---|---|---|
7.3 | $0-$5k | 0.00 |
A vulnerability was found in Apple macOS up to 10.12.1 (Operating System). It has been rated as critical. Affected by this issue is an unknown code of the component curl. The manipulation with an unknown input leads to a improper authorization vulnerability. Using CWE to declare the problem leads to CWE-285. The product does not perform or incorrectly performs an authorization check when an actor attempts to access a resource or perform an action. Impacted is integrity.
The bug was discovered 08/03/2016. The weakness was shared 12/13/2016 as HT207423 as confirmed advisory (Website). The advisory is shared for download at support.apple.com. This vulnerability is handled as CVE-2016-5420 since 06/10/2016. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1548.002. The advisory points out:
Multiple issues existed in curl. These issues were addressed by updating to curl version 7.51.0.
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 vulnerability scanner Nessus provides a plugin with the ID 93862 (SUSE SLES11 Security Update : curl (SUSE-SU-2016:2449-1)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family SuSE Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 176814 (Debian Security Update for curl (DLA 1568-1)).
Upgrading to version 10.12.2 eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability.
The vulnerability is also documented in the vulnerability database at Tenable (93862). The entries 80733, 90449, 91385 and 91680 are related to this item.
Product
Type
Vendor
Name
Version
License
CPE 2.3
CPE 2.2
CVSSv4
VulDB CVSS-B Score: 🔍VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 7.5VulDB Meta Temp Score: 7.3
VulDB Base Score: 7.5
VulDB Temp Score: 7.2
VulDB Vector: 🔍
VulDB Reliability: 🔍
NVD Base Score: 7.5
NVD Vector: 🔍
CVSSv2
AV | AC | Au | C | I | A |
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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: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍
NVD Base Score: 🔍
Exploiting
Class: Improper authorizationCWE: CWE-285 / CWE-266
ATT&CK: T1548.002
Local: No
Remote: Yes
Availability: 🔍
Status: Not defined
EPSS Score: 🔍
EPSS Percentile: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔍
0-Day | unlock | unlock | unlock | unlock |
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Today | unlock | unlock | unlock | unlock |
Nessus ID: 93862
Nessus Name: SUSE SLES11 Security Update : curl (SUSE-SU-2016:2449-1)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍
OpenVAS ID: 703638
OpenVAS Name: Debian Security Advisory DSA 3638-1 (curl - security update)
OpenVAS File: 🔍
OpenVAS Family: 🔍
Qualys ID: 🔍
Qualys Name: 🔍
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: UpgradeStatus: 🔍
Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍
Upgrade: macOS 10.12.2
Timeline
06/10/2016 🔍08/03/2016 🔍
08/03/2016 🔍
08/10/2016 🔍
10/05/2016 🔍
12/13/2016 🔍
12/13/2016 🔍
12/16/2016 🔍
10/07/2022 🔍
Sources
Vendor: apple.comAdvisory: HT207423
Status: Confirmed
Confirmation: 🔍
CVE: CVE-2016-5420 (🔍)
OVAL: 🔍
SecurityTracker: 1036537
SecurityFocus: 92309 - cURL/libcURL CVE-2016-5420 Certificate Validation Security Bypass Vulnerability
scip Labs: https://www.scip.ch/en/?labs.20180712
See also: 🔍
Entry
Created: 12/16/2016 14:12Updated: 10/07/2022 19:34
Changes: 12/16/2016 14:12 (72), 07/08/2019 16:07 (13), 10/07/2022 19:34 (4)
Complete: 🔍
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