VDB-146931 · CVE-2019-19703 · Issue 1467

Ktor up to 1.2.6 Authorization Header redirect

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	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.
6.6	$0-$5k	0.00

Summaryinfo

A vulnerability, which was classified as critical, has been found in Ktor up to 1.2.6. This issue affects some unknown processing. Performing a manipulation as part of Authorization Header results in redirect. This vulnerability is identified as CVE-2019-19703. The attack can be initiated remotely. There is not any exploit available.

Detailsinfo

A vulnerability was found in Ktor up to 1.2.6. It has been classified as critical. This affects an unknown functionality. The manipulation as part of a Authorization Header leads to a redirect vulnerability. CWE is classifying the issue as CWE-601. A web application accepts a user-controlled input that specifies a link to an external site, and uses that link in a Redirect. This simplifies phishing attacks. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

In Ktor through 1.2.6, the client resends data from the HTTP Authorization header to a redirect location.

The weakness was released 12/10/2019. This vulnerability is uniquely identified as CVE-2019-19703 since 12/10/2019. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. It demands that the victim is doing some kind of user interaction. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1204.001 according to MITRE ATT&CK.

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

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

Productinfo

Name

Ktor

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.6
VulDB Meta Temp Score: 6.6

VulDB Base Score: 7.1
VulDB Temp Score: 7.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.1
NVD Vector: 🔍

CVSSv2info

AV	AC	Au	C	I	A
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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Redirect
CWE: CWE-601
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

12/10/2019 🔍
12/10/2019 +0 days 🔍
12/11/2019 +1 days 🔍
03/10/2024 +1551 days 🔍

Sourcesinfo

Advisory: 1467
Status: Not defined

CVE: CVE-2019-19703 (🔍)
GCVE (CVE): GCVE-0-2019-19703
GCVE (VulDB): GCVE-100-146931

Entryinfo

Created: 12/11/2019 10:55
Updated: 03/10/2024 08:31
Changes: 12/11/2019 10:55 (34), 12/11/2019 11:00 (17), 03/10/2024 08:31 (4)
Complete: 🔍
Cache ID: 216::103