SaltStack Salt prior 2015.8.13/2016.3.5/2016.11.2 local_batch Client improper authentication

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
7.2$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as critical, has been found in SaltStack Salt. This impacts an unknown function of the component local_batch Client. The manipulation leads to improper authentication. This vulnerability is documented as CVE-2017-5192. The attack can be initiated remotely. There is not any exploit available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability was found in SaltStack Salt. It has been rated as critical. This issue affects an unknown functionality of the component local_batch Client. The manipulation with an unknown input leads to a improper authentication vulnerability. Using CWE to declare the problem leads to CWE-287. When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

When using the local_batch client from salt-api in SaltStack Salt before 2015.8.13, 2016.3.x before 2016.3.5, and 2016.11.x before 2016.11.2, external authentication is not respected, enabling all authentication to be bypassed.

The bug was discovered 09/01/2017. The weakness was released 09/26/2017 (Website). It is possible to read the advisory at docs.saltstack.com. The identification of this vulnerability is CVE-2017-5192 since 01/06/2017. The exploitation is known to be easy. The attack may be initiated remotely. The successful exploitation needs a simple authentication. The technical details are unknown and an exploit is not publicly available.

The vulnerability was handled as a non-public zero-day exploit for at least 25 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 111917 (Photon OS 1.0: Salt PHSA-2018-1.0-0106 (deprecated)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family PhotonOS Local Security Checks and running in the context l.

Upgrading to version 2015.8.13, 2016.3.5 or 2016.11.2 eliminates this vulnerability. A possible mitigation has been published 5 months after the disclosure of the vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (111917). Entry connected to this vulnerability is available at VDB-107172. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Name

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.6
VulDB Meta Temp Score: 7.4

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 8.8
NVD 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: Improper authentication
CWE: CWE-287
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 111917
Nessus Name: Photon OS 1.0: Salt PHSA-2018-1.0-0106 (deprecated)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Upgrade: SaltStack Salt 2015.8.13/2016.3.5/2016.11.2

Timelineinfo

01/06/2017 🔍
09/01/2017 +238 days 🔍
09/26/2017 +25 days 🔍
09/26/2017 +0 days 🔍
09/27/2017 +1 days 🔍
02/08/2018 +134 days 🔍
08/17/2018 +190 days 🔍
11/20/2019 +460 days 🔍

Sourcesinfo

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

CVE: CVE-2017-5192 (🔍)
GCVE (CVE): GCVE-0-2017-5192
GCVE (VulDB): GCVE-100-107171
See also: 🔍

Entryinfo

Created: 09/27/2017 08:53
Updated: 11/20/2019 08:13
Changes: 09/27/2017 08:53 (63), 11/20/2019 08:13 (7)
Complete: 🔍
Cache ID: 216::103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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