Cumulus Linux up to 2.5.3 Switch Configuration Tool Backend Shell Metacharacter access control

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.
6.5$0-$5k0.00

Summaryinfo

A vulnerability classified as problematic has been found in Cumulus Linux up to 2.5.3. Affected by this vulnerability is an unknown functionality of the component Switch Configuration Tool Backend. The manipulation as part of Shell Metacharacter leads to access control. This vulnerability is uniquely identified as CVE-2015-5699. Local access is required to approach this attack. No exploit exists.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in Cumulus Linux up to 2.5.3. This issue affects some unknown processing of the component Switch Configuration Tool Backend. The manipulation as part of a Shell Metacharacter leads to a access control vulnerability. Using CWE to declare the problem leads to CWE-264. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

The Switch Configuration Tools Backend (clcmd_server) in Cumulus Linux 2.5.3 and earlier allows local users to execute arbitrary commands via shell metacharacters in a cl-rctl command label.

The bug was discovered 08/11/2015. The weakness was disclosed 10/22/2017 as not defined mailinglist post (Full-Disclosure). The advisory is shared at seclists.org. The identification of this vulnerability is CVE-2015-5699 since 07/29/2015. An attack has to be approached locally. Required for exploitation is a simple authentication. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1068 for this issue.

The vulnerability was handled as a non-public zero-day exploit for at least 803 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.

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Vendor

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.5
VulDB Meta Temp Score: 6.5

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

NVD Base Score: 7.8
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
💳💳💳💳💳💳
💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock

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: 🔍

0-DayUnlockUnlockUnlockUnlock
TodayUnlockUnlockUnlockUnlock

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

07/29/2015 🔍
08/11/2015 +13 days 🔍
10/22/2017 +803 days 🔍
10/22/2017 +0 days 🔍
10/23/2017 +1 days 🔍
11/28/2019 +766 days 🔍

Sourcesinfo

Advisory: seclists.org
Status: Not defined

CVE: CVE-2015-5699 (🔍)
GCVE (CVE): GCVE-0-2015-5699
GCVE (VulDB): GCVE-100-108317

Entryinfo

Created: 10/23/2017 09:01
Updated: 11/28/2019 15:03
Changes: 10/23/2017 09:01 (58), 11/28/2019 15:03 (1)
Complete: 🔍
Cache ID: 216::103

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Discussion

No comments yet. Languages: en.

Please log in to comment.

Might our Artificial Intelligence support you?

Check our Alexa App!