Apache Airflow up to 1.10.0 LDAP Auth Backend certificate validation

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.
7.1$0-$5k0.00

Summaryinfo

A vulnerability described as critical has been identified in Apache Airflow up to 1.10.0. Impacted is an unknown function of the component LDAP Auth Backend. The manipulation results in certificate validation. This vulnerability is reported as CVE-2018-20245. The attack can be launched remotely. No exploit exists. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability classified as critical has been found in Apache Airflow up to 1.10.0. Affected is an unknown code block of the component LDAP Auth Backend. The manipulation with an unknown input leads to a certificate validation vulnerability. CWE is classifying the issue as CWE-295. The product does not validate, or incorrectly validates, a certificate. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

The LDAP auth backend (airflow.contrib.auth.backends.ldap_auth) prior to Apache Airflow 1.10.1 was misconfigured and contained improper checking of exceptions which disabled server certificate checking.

The bug was discovered 01/08/2019. The weakness was disclosed 01/23/2019 (Website). The advisory is shared for download at lists.apache.org. This vulnerability is traded as CVE-2018-20245 since 12/19/2018. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1587.003.

The vulnerability was handled as a non-public zero-day exploit for at least 15 days. During that time the estimated underground price was around $5k-$25k.

Upgrading to version 1.10.1 eliminates this vulnerability.

Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.4
VulDB Meta Temp Score: 7.2

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

NVD Base Score: 7.5
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: Certificate validation
CWE: CWE-295 / 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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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Airflow 1.10.1

Timelineinfo

12/19/2018 🔍
01/08/2019 +20 days 🔍
01/23/2019 +15 days 🔍
01/23/2019 +0 days 🔍
01/24/2019 +1 days 🔍
05/05/2020 +467 days 🔍

Sourcesinfo

Vendor: apache.org

Advisory: lists.apache.org
Status: Not defined

CVE: CVE-2018-20245 (🔍)
GCVE (CVE): GCVE-0-2018-20245
GCVE (VulDB): GCVE-100-130212

Entryinfo

Created: 01/24/2019 15:22
Updated: 05/05/2020 18:53
Changes: 01/24/2019 15:22 (59), 05/05/2020 18:53 (1)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

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