Multiple vulnerabilities in Splunk Enterprise and Light



Risk Low
Patch available YES
Number of vulnerabilities 4
CVE-ID CVE-2018-7429
CVE-2018-7432
CVE-2018-7431
CVE-2018-7427
CWE-ID CWE-20
CWE-22
CWE-79
Exploitation vector Network
Public exploit N/A
Vulnerable software
 Splunk Enterprise
Server applications / IDS/IPS systems, Firewalls and proxy servers

Splunk Light
Server applications / IDS/IPS systems, Firewalls and proxy servers

Vendor Splunk Inc.

Security Bulletin

This security bulletin contains information about 4 vulnerabilities.

1) Improper input validation

EUVDB-ID: #VU15454

Risk: Low

CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2018-7429

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

The vulnerability allows a remote attacker to cause DoS condition on the target system.

The vulnerability exists due to an error when processing HTTP requests by the Splunkd daemon. A remote attacker can send an HTTP request that submits malicious input and cause the service to crash.

Mitigation

Update Splunk Enterprise to 6.2.14, 6.3.11, 6.4.8.
Update Splunk Light to version 6.5.0.

Vulnerable software versions

Splunk Enterprise: 6.2.0 - 6.4.7

Splunk Light: 6.2.2 - 6.4.4

CPE2.3 External links

https://www.splunk.com/view/SP-CAAAP5T


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

How the attacker can exploit this vulnerability?

The attacker would have to send a specially crafted request to the affected application in order to exploit this vulnerability.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

2) Improper input validation

EUVDB-ID: #VU15455

Risk: Low

CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2018-7432

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

The vulnerability allows a remote attacker to cause DoS condition on the target system.

The vulnerability exists due to an error when processing HTTP requests by the Splunkd daemon. A remote attacker can send an HTTP request that submits malicious input and cause the service to crash.

Mitigation

Update Splunk Enterprise to 6.2.14, 6.3.10, 6.4.7, 6.5.3.
Update Splunk Light to version 6.6.0.

Vulnerable software versions

Splunk Enterprise: 6.2.0 - 6.5.2

Splunk Light: 6.2.2 - 6.5.3

CPE2.3 External links

https://www.splunk.com/view/SP-CAAAP5T


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

How the attacker can exploit this vulnerability?

The attacker would have to send a specially crafted request to the affected application in order to exploit this vulnerability.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

3) Path traversal

EUVDB-ID: #VU15456

Risk: Low

CVSSv4.0: 1.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2018-7431

CWE-ID: CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

Exploit availability: No

Description

The vulnerability allows a remote attacker to conduct a path traversal attack on the target system.

The vulnerability exists in the Django App component  due to insufficient validation of user-supplied input. A remote attacker can send a specially crafted request that submits malicious directory traversal characters and download arbitrary files from the Django App component of the affected application, which could be used to conduct further attacks.

Mitigation

Update Splunk Enterprise to 6.0.14, 6.1.13, 6.2.14, 6.3.10, 6.4.6, 6.5.3.
Update Splunk Light to version 6.6.0.

Vulnerable software versions

Splunk Enterprise: 6.0.0 - 6.5.2

Splunk Light: 6.2.2 - 6.5.3

CPE2.3 External links

https://www.splunk.com/view/SP-CAAAP5T


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

How the attacker can exploit this vulnerability?

The attacker would have to send a specially crafted request to the affected application in order to exploit this vulnerability.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

4) Cross-site scripting

EUVDB-ID: #VU15457

Risk: Low

CVSSv4.0: 1.2 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:U/U:Clear]

CVE-ID: CVE-2018-7427

CWE-ID: CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Exploit availability: No

Description

The disclosed vulnerability allows a remote attacker to perform cross-site scripting (XSS) attacks.

The vulnerability exists in Splunk Web due to insufficient sanitization of user-supplied data. A remote attacker can trick the victim to follow a specially crafted link and execute arbitrary HTML and script code in user's browser in context of vulnerable website.

Successful exploitation of this vulnerability may allow a remote attacker to steal potentially sensitive information, change appearance of the web page, perform phishing and drive-by-download attacks.

Mitigation

Update Splunk Enterprise to 6.0.14, 6.1.13, 6.2.14, 6.3.10, 6.4.7, 6.5.3.
Update Splunk Light to version 6.6.0.

Vulnerable software versions

Splunk Enterprise: 6.0.0 - 6.5.2

Splunk Light: 6.2.2 - 6.5.3

CPE2.3 External links

https://www.splunk.com/view/SP-CAAAP5T


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

How the attacker can exploit this vulnerability?

The attacker would have to send a specially crafted request to the affected application in order to exploit this vulnerability.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.



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