Multiple vulnerabilities in MISP

1) Cross-site scripting

EUVDB-ID: #VU25632

Risk: Medium

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:Green]

CVE-ID: CVE-2020-8893

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 due to insufficient sanitization of user-supplied data in app/View/Galaxies/view.ctp. 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

Install updates from vendor's website.

Vulnerable software versions

MISP: 2.4.94 - 2.4.120

CPE2.3

External links

https://github.com/MISP/MISP/commit/3d982d92fd26584115c01f8c560a688d1096b65c
https://github.com/MISP/MISP/compare/v2.4.120...v2.4.121

Q & A

Can this vulnerability be exploited remotely?

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

Is there known malware, which exploits this vulnerability?

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

2) Improper access control

EUVDB-ID: #VU25633

Risk: Medium

CVSSv4.0: 2.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2020-8894

CWE-ID: CWE-284 - Improper Access Control

Exploit availability: No

Description

The vulnerability allows a remote attacker to gain unauthorized access to otherwise restricted functionality.

The vulnerability exists due to improper access restrictions in app/Controller/ThreadsController.php and app/Model/Thread.php scripts. A remote authenticated attacker can bypass implemented security restrictions and view otherwise restricted discussions.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

MISP: 2.4.0 - 2.4.120

CPE2.3

External links

https://github.com/MISP/MISP/commit/9400b8bc8699435d84508e598aca98a31affd77c
https://github.com/MISP/MISP/compare/v2.4.120...v2.4.121

Q & A

Can this vulnerability be exploited remotely?

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

Is there known malware, which exploits this vulnerability?

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

3) Resource management error

EUVDB-ID: #VU25634

Risk: Low

CVSSv4.0: 1.7 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2020-8890

CWE-ID: CWE-399 - Resource Management Errors

Exploit availability: No

Description

The vulnerability allows a remote attacker to bypass implemented security restrictions.

The vulnerability exists due to software does has incorrectly implemented brute-force protection. A remote attacker can cause the application database to respond slowly to requests and use this situation to bypass implemented brute-force protection.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

MISP: 2.4.51 - 2.4.120

CPE2.3

External links

https://github.com/MISP/MISP/commit/934c82819237b4edf1da64587b72a87bec5dd520
https://github.com/MISP/MISP/commit/c1a0b3b2809b21b4df8c1efbc803aff700e262c3
https://github.com/MISP/MISP/compare/v2.4.120...v2.4.121

Q & A

Can this vulnerability be exploited remotely?

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

Is there known malware, which exploits this vulnerability?

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

4) Improper control of interaction frequency

EUVDB-ID: #VU25635

Risk: Low

CVSSv4.0: 1.7 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2020-8891

CWE-ID: CWE-799 - Improper Control of Interaction Frequency

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform a brute-force attack.

The vulnerability exists due to software does not canonicalize usernames when trying to block a brute-force series of invalid requests.A remote attacker can bypass implemented security mechanisms and perform a brute-force attack.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

MISP: 2.4.51 - 2.4.120

CPE2.3

External links

https://github.com/MISP/MISP/commit/934c82819237b4edf1da64587b72a87bec5dd520
https://github.com/MISP/MISP/commit/c1a0b3b2809b21b4df8c1efbc803aff700e262c3
https://github.com/MISP/MISP/compare/v2.4.120...v2.4.121

Q & A

Can this vulnerability be exploited remotely?

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

Is there known malware, which exploits this vulnerability?

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

5) Improper control of interaction frequency

EUVDB-ID: #VU25636

Risk: Low

CVSSv4.0: 1.7 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2020-8892

CWE-ID: CWE-799 - Improper Control of Interaction Frequency

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform a brute-force attack.

The vulnerability exists due to software does not consider a possibility to use HTTP PUT method when trying to block a brute-force series of invalid requests. A remote attacker can perform a brute-force attack via HTTP PUT method.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

MISP: 0.1 - 2.4.120

CPE2.3

External links

https://github.com/MISP/MISP/commit/934c82819237b4edf1da64587b72a87bec5dd520
https://github.com/MISP/MISP/commit/c1a0b3b2809b21b4df8c1efbc803aff700e262c3
https://github.com/MISP/MISP/compare/v2.4.120...v2.4.121

Q & A

Can this vulnerability be exploited remotely?

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

Is there known malware, which exploits this vulnerability?

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

Risk	Medium
Patch available	YES
Number of vulnerabilities	5
CVE-ID	CVE-2020-8893 CVE-2020-8894 CVE-2020-8890 CVE-2020-8891 CVE-2020-8892
CWE-ID	CWE-79 CWE-284 CWE-399 CWE-799
Exploitation vector	Network
Public exploit	N/A
Vulnerable software	MISP Web applications / CMS
Vendor	misp-project.org