Tinyproxy up to 1.8.4 main.c access control

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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4.4$0-$5k0.00

Summaryinfo

A vulnerability classified as problematic has been found in Tinyproxy up to 1.8.4. This vulnerability affects unknown code of the file main.c. This manipulation causes access control. This vulnerability is registered as CVE-2017-11747. The attack needs to be launched locally. No exploit is available.

Detailsinfo

A vulnerability classified as problematic was found in Tinyproxy up to 1.8.4 (Firewall Software). Affected by this vulnerability is some unknown processing of the file main.c. The manipulation with an unknown input leads to a access control vulnerability. The CWE definition for the vulnerability is CWE-264. As an impact it is known to affect availability. The summary by CVE is:

main.c in Tinyproxy 1.8.4 and earlier creates a /run/tinyproxy/tinyproxy.pid file after dropping privileges to a non-root account, which might allow local users to kill arbitrary processes by leveraging access to this non-root account for tinyproxy.pid modification before a root script executes a "kill `cat /run/tinyproxy/tinyproxy.pid`" command.

The bug was discovered 07/29/2017. The weakness was published 07/30/2017 (Website). It is possible to read the advisory at github.com. This vulnerability is known as CVE-2017-11747 since 07/30/2017. Attacking locally is a requirement. Required for exploitation is a single authentication. Technical details of the vulnerability are known, but there is no available exploit. The attack technique deployed by this issue is T1068 according to MITRE ATT&CK.

The vulnerability was handled as a non-public zero-day exploit for at least 1 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.

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

Productinfo

Type

Name

Version

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.4
VulDB Meta Temp Score: 4.4

VulDB Base Score: 3.3
VulDB Temp Score: 3.3
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

Class: Access control
CWE: CWE-264
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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OpenVAS ID: 103028
OpenVAS Name: Tinyproxy DoS Vulnerability
OpenVAS File: 🔍
OpenVAS Family: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

07/29/2017 🔍
07/30/2017 +1 days 🔍
07/30/2017 +0 days 🔍
07/30/2017 +0 days 🔍
07/31/2017 +1 days 🔍
12/14/2022 +1962 days 🔍

Sourcesinfo

Product: github.com

Advisory: 106
Status: Not defined

CVE: CVE-2017-11747 (🔍)
GCVE (CVE): GCVE-0-2017-11747
GCVE (VulDB): GCVE-100-104635

Entryinfo

Created: 07/31/2017 09:56
Updated: 12/14/2022 13:22
Changes: 07/31/2017 09:56 (61), 11/02/2019 11:03 (1), 12/14/2022 13:16 (3), 12/14/2022 13:22 (1)
Complete: 🔍
Cache ID: 216::103

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

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