VDB-134392 · CVE-2019-3558 · BID 108274

Facebook Thrift prior v2019.02.18.00 Python Server Messages input validation

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.
6.3	$0-$5k	0.00

Summaryinfo

A vulnerability was found in Facebook Thrift. It has been declared as problematic. Impacted is an unknown function of the component Python Server. Executing a manipulation as part of Messages can lead to input validation. This vulnerability is tracked as CVE-2019-3558. The attack can be launched remotely. No exploit exists. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability has been found in Facebook Thrift (Social Network Software) and classified as problematic. This vulnerability affects some unknown processing of the component Python Server. The manipulation as part of a Messages leads to a input validation vulnerability. The CWE definition for the vulnerability is 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. As an impact it is known to affect availability. CVE summarizes:

Python Facebook Thrift servers would not error upon receiving messages with containers of fields of unknown type. As a result, malicious clients could send short messages which would take a long time for the server to parse, potentially leading to denial of service. This issue affects Facebook Thrift prior to v2019.02.18.00.

The bug was discovered 02/15/2019. The weakness was disclosed 05/06/2019 (Website). The advisory is shared for download at securityfocus.com. This vulnerability was named CVE-2019-3558 since 01/02/2019. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. There are neither technical details nor an exploit publicly available.

The vulnerability was handled as a non-public zero-day exploit for at least 80 days. During that time the estimated underground price was around $5k-$25k.

Upgrading to version v2019.02.18.00 eliminates this vulnerability.

The entries VDB-134395, VDB-134394, VDB-134391 and VDB-134393 are pretty similar. VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Type

Social Network Software

Vendor

Facebook

Name

Thrift

License

free

CPE 2.3info

🔍

CPE 2.2info

🔍

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.4
VulDB Meta Temp Score: 6.3

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

NVD Base Score: 7.5
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: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Input validation
CWE: CWE-20
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: Thrift v2019.02.18.00
Patch: github.com

Timelineinfo

01/02/2019 🔍
02/15/2019 +44 days 🔍
05/06/2019 +80 days 🔍
05/06/2019 +0 days 🔍
09/12/2023 +1590 days 🔍

Sourcesinfo

Advisory: c5d6e07588cd03061bc54d451a7fa6e84883d62b⛔
Status: Not defined

CVE: CVE-2019-3558 (🔍)
GCVE (CVE): GCVE-0-2019-3558
GCVE (VulDB): GCVE-100-134392
SecurityFocus: 108274

See also: 🔍

Entryinfo

Created: 05/06/2019 21:10
Updated: 09/12/2023 14:21
Changes: 05/06/2019 21:10 (58), 06/07/2020 09:05 (2), 09/12/2023 14:21 (6)
Complete: 🔍
Cache ID: 216::103

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