Grafana up to 4.6.3/5.2.2 Remember Me Cookie improper authentication

CVSS Meta Temp Score
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CTI Interest Score
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8.4$0-$5k0.00

Summaryinfo

A vulnerability was found in Grafana up to 4.6.3/5.2.2. It has been classified as critical. This affects an unknown function of the component Remember Me Cookie Handler. This manipulation causes improper authentication. This vulnerability appears as CVE-2018-15727. The attack may be initiated remotely. There is no available exploit. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability classified as critical was found in Grafana up to 4.6.3/5.2.2. Affected by this vulnerability is an unknown code block of the component Remember Me Cookie Handler. The manipulation with an unknown input leads to a improper authentication vulnerability. The CWE definition for the vulnerability is CWE-287. When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

Grafana 2.x, 3.x, and 4.x before 4.6.4 and 5.x before 5.2.3 allows authentication bypass because an attacker can generate a valid "remember me" cookie knowing only a username of an LDAP or OAuth user.

The bug was discovered 08/29/2018. The weakness was presented 08/29/2018 by Basti (Website). The advisory is shared at grafana.com. This vulnerability is known as CVE-2018-15727 since 08/22/2018. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Neither technical details nor an exploit are publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 119705 (RHEL 7 : RHGS WA (RHSA-2018:3829)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Red Hat Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 13270 (Grafana Authentication Bypass Vulnerability).

Upgrading to version 4.6.4 or 5.2.3 eliminates this vulnerability. A possible mitigation has been published 4 months after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (119705) and SecurityFocus (BID 105184†). If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Name

Version

License

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

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: 119705
Nessus Name: RHEL 7 : RHGS WA (RHSA-2018:3829)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Upgrade: Grafana 4.6.4/5.2.3

Timelineinfo

08/22/2018 🔍
08/29/2018 +7 days 🔍
08/29/2018 +0 days 🔍
08/29/2018 +0 days 🔍
08/29/2018 +0 days 🔍
08/30/2018 +1 days 🔍
12/17/2018 +109 days 🔍
12/17/2018 +0 days 🔍
05/06/2023 +1601 days 🔍

Sourcesinfo

Advisory: RHSA-2018:3829
Researcher: Basti
Status: Not defined
Confirmation: 🔍

CVE: CVE-2018-15727 (🔍)
GCVE (CVE): GCVE-0-2018-15727
GCVE (VulDB): GCVE-100-123373
SecurityFocus: 105184 - Grafana CVE-2018-15727 Authentication Bypass Vulnerability

Entryinfo

Created: 08/30/2018 08:14
Updated: 05/06/2023 09:08
Changes: 08/30/2018 08:14 (72), 03/19/2020 09:26 (6), 05/06/2023 09:08 (4)
Complete: 🔍
Cache ID: 216::103

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

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