VDB-154694 · CVE-2019-11823 · GCVE-0-2019-11823

Synology Router Manager prior 1.2.3-8017-2 Network Center crlf injection

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 categorized as problematic has been discovered in Synology Router Manager. Affected by this issue is some unknown functionality of the component Network Center. Such manipulation leads to crlf injection. This vulnerability is traded as CVE-2019-11823. The attack may be launched remotely. There is no exploit available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in Synology Router Manager (Router Operating System). Affected by this issue is an unknown functionality of the component Network Center. The manipulation with an unknown input leads to a crlf injection vulnerability. Using CWE to declare the problem leads to CWE-93. The product uses CRLF (carriage return line feeds) as a special element, e.g. to separate lines or records, but it does not neutralize or incorrectly neutralizes CRLF sequences from inputs. Impacted is availability. CVE summarizes:

CRLF injection vulnerability in Network Center in Synology Router Manager (SRM) before 1.2.3-8017-2 allows remote attackers to cause a denial of service (out-of-bounds read and application crash) via crafted network traffic.

The weakness was shared 05/04/2020 (Website). The advisory is available at synology.com. This vulnerability is handled as CVE-2019-11823 since 05/08/2019. The attack may be launched remotely. No form of authentication is required for exploitation. The technical details are unknown and an exploit is not available.

Upgrading to version 1.2.3-8017-2 eliminates this vulnerability.

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Productinfo

Type

Router Operating System

Vendor

Synology

Name

Router Manager

License

commercial

Website

Vendor: https://www.synology.com/

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.9
VulDB Meta Temp Score: 6.8

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 8.6
NVD Vector: 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Crlf injection
CWE: CWE-93 / CWE-74 / CWE-707
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: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Router Manager 1.2.3-8017-2

Timelineinfo

05/08/2019 🔍
05/04/2020 +362 days 🔍
05/04/2020 +0 days 🔍
10/15/2020 +164 days 🔍

Sourcesinfo

Vendor: synology.com

Advisory: synology.com
Status: Not defined
Confirmation: 🔍

CVE: CVE-2019-11823 (🔍)
GCVE (CVE): GCVE-0-2019-11823
GCVE (VulDB): GCVE-100-154694

Entryinfo

Created: 05/04/2020 16:59
Updated: 10/15/2020 07:46
Changes: 05/04/2020 16:59 (38), 05/04/2020 17:04 (12), 10/15/2020 07:39 (1), 10/15/2020 07:46 (1)
Complete: 🔍
Cache ID: 216::103