Apple macOS up to 10.12.3 OpenSSH untrusted search path

CVSS Meta Temp Score
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CTI Interest Score
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7.1$0-$5k0.00

Summaryinfo

A vulnerability has been found in Apple macOS up to 10.12.3 and classified as critical. This affects an unknown part of the component OpenSSH. Performing a manipulation results in untrusted search path. This vulnerability is identified as CVE-2016-10009. The attack can be initiated remotely. Additionally, an exploit exists. The affected component should be upgraded.

Detailsinfo

A vulnerability, which was classified as critical, was found in Apple macOS up to 10.12.3 (Operating System). This affects an unknown part of the component OpenSSH. The manipulation with an unknown input leads to a untrusted search path vulnerability. CWE is classifying the issue as CWE-426. The product searches for critical resources using an externally-supplied search path that can point to resources that are not under the product's direct control. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

Untrusted search path vulnerability in ssh-agent.c in ssh-agent in OpenSSH before 7.4 allows remote attackers to execute arbitrary local PKCS#11 modules by leveraging control over a forwarded agent-socket.

The bug was discovered 12/19/2016. The weakness was released 03/27/2017 by Jann Horn as HT207615 as confirmed advisory (Website). The advisory is shared at support.apple.com. This vulnerability is uniquely identified as CVE-2016-10009 since 12/19/2016. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Technical details are unknown but a public exploit is available. MITRE ATT&CK project uses the attack technique T1574 for this issue. The advisory points out:

Multiple issues existed in OpenSSH before version 7.4. These were addressed by updating OpenSSH to version 7.4.

The exploit is shared for download at exploit-db.com. It is declared as proof-of-concept. The vulnerability was handled as a non-public zero-day exploit for at least 16 days. During that time the estimated underground price was around $5k-$25k. The vulnerability scanner Nessus provides a plugin with the ID 102751 (CentOS 7 : openssh (CESA-2017:2029)), 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 197025 (Ubuntu Security Notification for Openssh Vulnerabilities (USN-3538-1)).

Upgrading to version 10.12.4 eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Exploit-DB (40963), Tenable (102751), SecurityFocus (BID 94968†) and CERT Bund (WID-SEC-2023-1996). Entries connected to this vulnerability are available at VDB-94607, VDB-94608, VDB-94609 and VDB-94610. If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Affected

  • Amazon Linux 2
  • FreeBSD Project FreeBSD OS
  • IBM AIX
  • Juniper JUNOS
  • Red Hat Enterprise Linux
  • NetApp Data ONTAP
  • Open Source OpenSSH
  • Ubuntu Linux
  • SUSE Linux
  • IBM VIOS
  • Palo Alto Networks PAN-OS
  • EMC Avamar
  • Dell NetWorker
  • Moxa Switch

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.3
VulDB Meta Temp Score: 7.1

VulDB Base Score: 7.3
VulDB Temp Score: 6.6
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.3
NVD Vector: 🔍

ADP CISA Base Score: 7.3
ADP CISA Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Untrusted search path
CWE: CWE-426
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 102751
Nessus Name: CentOS 7 : openssh (CESA-2017:2029)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 801105
OpenVAS Name: Apple Mac OS X Multiple Vulnerabilities-HT207615
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Upgrade: macOS 10.12.4
Patch: github.com

Timelineinfo

12/19/2016 🔍
12/19/2016 +0 days 🔍
12/19/2016 +0 days 🔍
01/04/2017 +16 days 🔍
03/27/2017 +82 days 🔍
03/27/2017 +0 days 🔍
03/28/2017 +1 days 🔍
08/25/2017 +150 days 🔍
05/30/2026 +3199 days 🔍

Sourcesinfo

Vendor: apple.com

Advisory: HT207615
Researcher: Jann Horn
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2016-10009 (🔍)
GCVE (CVE): GCVE-0-2016-10009
GCVE (VulDB): GCVE-100-98661

OVAL: 🔍

SecurityFocus: 94968 - OpenSSH CVE-2016-10009 Remote Code Execution Vulnerability
OSVDB: - CVE-2016-10009 - OpenSSH - Untrusted Search Path Issue
SecurityTracker: 1037490
CERT Bund: WID-SEC-2023-1996 - OpenSSH: Mehrere Schwachstellen

scip Labs: https://www.scip.ch/en/?labs.20180712
See also: 🔍

Entryinfo

Created: 03/28/2017 11:18
Updated: 05/30/2026 01:39
Changes: 03/28/2017 11:18 (82), 08/21/2020 14:47 (10), 11/20/2022 09:33 (5), 12/07/2024 14:02 (14), 01/09/2026 15:12 (7), 05/30/2026 01:39 (11)
Complete: 🔍
Cache ID: 216::103

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Discussion

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