SaltStack Salt prior 2016.11.7/2017.7.1 Minion ID path traversal

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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8.4$0-$5k0.00

A vulnerability was found in SaltStack Salt and classified as critical. Affected by this issue is some unknown functionality of the component Minion ID Handler. The manipulation with an unknown input leads to a path traversal vulnerability. Using CWE to declare the problem leads to CWE-22. The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory. Impacted is confidentiality, integrity, and availability. CVE summarizes:

Directory traversal vulnerability in minion id validation in SaltStack Salt before 2016.11.7 and 2017.7.x before 2017.7.1 allows remote minions with incorrect credentials to authenticate to a master via a crafted minion ID.

The bug was discovered 08/15/2017. The weakness was shared 08/23/2017 (Website). The advisory is available at docs.saltstack.com. This vulnerability is handled as CVE-2017-12791 since 08/10/2017. The attack may be launched remotely. No form of authentication is required for exploitation. The technical details are unknown and an exploit is not available. This vulnerability is assigned to T1006 by the MITRE ATT&CK project.

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 $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 102689 (FreeBSD : salt -- Maliciously crafted minion IDs can cause unwanted directory traversals on the Salt-master (3531141d-a708-477c-954a-2a0549e49ca9)), 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 171099 (OpenSUSE Security Update for salt (openSUSE-SU-2018:1053-1)).

Upgrading to version 2016.11.7 or 2017.7.1 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 databases at Tenable (102689) and SecurityFocus (BID 100384†). The entries VDB-96618 and VDB-107172 are related to this item. If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.5
VulDB Meta Temp Score: 8.4

VulDB Base Score: 7.3
VulDB Temp Score: 7.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 9.8
NVD Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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Exploitinginfo

Class: Path traversal
CWE: CWE-22
CAPEC: 🔍
ATT&CK: 🔍

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 102689
Nessus Name: FreeBSD : salt -- Maliciously crafted minion IDs can cause unwanted directory traversals on the Salt-master (3531141d-a708-477c-954a-2a0549e49ca9)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Salt 2016.11.7/2017.7.1
Patch: github.com

Timelineinfo

08/10/2017 🔍
08/15/2017 +5 days 🔍
08/15/2017 +0 days 🔍
08/22/2017 +7 days 🔍
08/23/2017 +1 days 🔍
08/23/2017 +0 days 🔍
08/23/2017 +0 days 🔍
08/24/2017 +1 days 🔍
12/16/2022 +1940 days 🔍

Sourcesinfo

Advisory: docs.saltstack.com
Status: Not defined
Confirmation: 🔍

CVE: CVE-2017-12791 (🔍)
GCVE (CVE): GCVE-0-2017-12791
GCVE (VulDB): GCVE-100-105674
SecurityFocus: 100384 - SaltStack Salt CVE-2017-12791 Directory Traversal Vulnerability

See also: 🔍

Entryinfo

Created: 08/24/2017 10:36 AM
Updated: 12/16/2022 12:38 PM
Changes: 08/24/2017 10:36 AM (63), 11/09/2019 07:31 PM (11), 12/16/2022 12:38 PM (4)
Complete: 🔍
Cache ID: 18:F3B:40

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