VDB-143959 · CVE-2019-17526 · GCVE-0-2019-17526

SageMath Sage Cell Server up to 2019-10-05 Python import('os').popen('whoami').read os command injection ⚔ [Disputed]

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.
8.5	$0-$5k	0.00

Summaryinfo

A vulnerability marked as critical has been reported in SageMath Sage Cell Server up to 2019-10-05. This affects the function __import__('os').popen('whoami').read of the component Python. This manipulation causes os command injection. The identification of this vulnerability is CVE-2019-17526. It is possible to initiate the attack remotely. There is no exploit available. There are still doubts about whether this vulnerability truly exists. It is recommended to replace the affected component with an alternative.

Detailsinfo

A vulnerability has been found in SageMath Sage Cell Server up to 2019-10-05 and classified as critical. Affected by this vulnerability is the function __import__('os').popen('whoami').read of the component Python. The manipulation with an unknown input leads to a os command injection vulnerability. The CWE definition for the vulnerability is CWE-78. The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

** DISPUTED ** An issue was discovered in SageMath Sage Cell Server through 2019-10-05. Python Code Injection can occur in the context of an internet facing web application. Malicious actors can execute arbitrary commands on the underlying operating system, as demonstrated by an __import__('os').popen('whoami').read() line. NOTE: the vendor's position is that the product is "vulnerable by design" and the current behavior will be retained.

The weakness was shared 10/18/2019. This vulnerability is known as CVE-2019-17526 since 10/12/2019. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Technical details of the vulnerability are known, but there is no available exploit. The attack technique deployed by this issue is T1202 according to MITRE ATT&CK.

The real existence of this vulnerability is still doubted at the moment.

The problem might be mitigated by replacing the product with as an alternative.

Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Vendor

SageMath

Name

Sage Cell Server

Version

2019-10-05

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.5
VulDB Meta Temp Score: 8.5

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

NVD Base Score: 9.8
NVD Vector: 🔍

CVSSv2info

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

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Os command injection
CWE: CWE-78 / CWE-77 / CWE-74
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: Alternative
Status: 🔍

0-Day Time: 🔍

Timelineinfo

10/12/2019 🔍
10/18/2019 +6 days 🔍
10/19/2019 +1 days 🔍
08/05/2024 +1752 days 🔍

Sourcesinfo

Advisory: gist.github.com
Status: Not defined
Disputed: 🔍

CVE: CVE-2019-17526 (🔍)
GCVE (CVE): GCVE-0-2019-17526
GCVE (VulDB): GCVE-100-143959

Entryinfo

Created: 10/19/2019 07:35
Updated: 08/05/2024 05:13
Changes: 10/19/2019 07:35 (37), 10/19/2019 07:40 (17), 01/17/2024 09:19 (3), 08/05/2024 05:13 (17)
Complete: 🔍
Cache ID: 216::103