etcd up to 3.3.1 DNS Request DNS Rebinding input validation

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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5.4$0-$5k0.00

Summaryinfo

A vulnerability was found in etcd up to 3.3.1 and classified as critical. Affected by this issue is some unknown functionality of the component DNS Handler. The manipulation as part of Request results in input validation (DNS Rebinding). This vulnerability is cataloged as CVE-2018-1099. The attack must be initiated from a local position. There is no exploit available.

Detailsinfo

A vulnerability, which was classified as critical, was found in etcd up to 3.3.1. Affected is an unknown code of the component DNS Handler. The manipulation as part of a Request leads to a input validation vulnerability (DNS Rebinding). CWE is classifying the issue as CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

DNS rebinding vulnerability found in etcd 3.3.1 and earlier. An attacker can control his DNS records to direct to localhost, and trick the browser into sending requests to localhost (or any other address).

The bug was discovered 02/25/2018. The weakness was shared 04/03/2018 as Bug 1552717 as not defined bug report (Bugzilla). The advisory is shared for download at bugzilla.redhat.com. This vulnerability is traded as CVE-2018-1099 since 12/04/2017. The exploitability is told to be easy. The attack needs to be approached locally. The exploitation doesn't require any form of authentication. There are neither technical details nor an exploit publicly available.

The vulnerability was handled as a non-public zero-day exploit for at least 37 days. During that time the estimated underground price was around $0-$5k.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The entry VDB-115643 is related to this item. Once again VulDB remains the best source for vulnerability data.

Productinfo

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.4
VulDB Meta Temp Score: 5.4

VulDB Base Score: 5.3
VulDB Temp Score: 5.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.5
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

Name: DNS Rebinding
Class: Input validation / DNS Rebinding
CWE: CWE-20
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

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: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

12/04/2017 🔍
02/25/2018 +83 days 🔍
04/03/2018 +37 days 🔍
04/03/2018 +0 days 🔍
04/04/2018 +1 days 🔍
01/21/2020 +657 days 🔍

Sourcesinfo

Advisory: Bug 1552717
Status: Not defined
Confirmation: 🔍

CVE: CVE-2018-1099 (🔍)
GCVE (CVE): GCVE-0-2018-1099
GCVE (VulDB): GCVE-100-115644
See also: 🔍

Entryinfo

Created: 04/04/2018 08:35
Updated: 01/21/2020 08:18
Changes: 04/04/2018 08:35 (60), 01/21/2020 08:18 (2)
Complete: 🔍
Cache ID: 216:754:103

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