Multiple vulnerabilities in Moodle

1) Permissions, Privileges, and Access Controls

EUVDB-ID: #VU40453

Risk: Low

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

CVE-ID: CVE-2015-5342

CWE-ID: CWE-264 - Permissions, Privileges, and Access Controls

Exploit availability: No

Description

The vulnerability allows a remote authenticated user to manipulate data.

The choice module in Moodle through 2.6.11, 2.7.x before 2.7.11, 2.8.x before 2.8.9, and 2.9.x before 2.9.3 allows remote authenticated users to bypass intended access restrictions by visiting a URL to add or delete responses in the closed state.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Moodle: 2.7 - 2.9.2

CPE2.3

External links

https://git.moodle.org/gw?p=moodle.git&a=search&h=HEAD&st=commit&s=MDL-51569
https://moodle.org/mod/forum/discuss.php?d=323237

Q & A

Can this vulnerability be exploited remotely?

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

Is there known malware, which exploits this vulnerability?

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

2) Information disclosure

EUVDB-ID: #VU40454

Risk: Low

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

CVE-ID: CVE-2015-5341

CWE-ID: CWE-200 - Information exposure

Exploit availability: No

Description

The vulnerability allows a remote authenticated user to gain access to sensitive information.

mod_scorm in Moodle through 2.6.11, 2.7.x before 2.7.11, 2.8.x before 2.8.9, and 2.9.x before 2.9.3 mishandles availability dates, which allows remote authenticated users to bypass intended access restrictions and read SCORM contents via unspecified vectors.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Moodle: 2.7 - 2.9.2

CPE2.3

External links

https://git.moodle.org/gw?p=moodle.git&a=search&h=HEAD&st=commit&s=MDL-50837
https://moodle.org/mod/forum/discuss.php?d=323236

Q & A

Can this vulnerability be exploited remotely?

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

Is there known malware, which exploits this vulnerability?

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

3) Information disclosure

EUVDB-ID: #VU40455

Risk: Low

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

CVE-ID: CVE-2015-5340

CWE-ID: CWE-200 - Information exposure

Exploit availability: No

Description

The vulnerability allows a remote authenticated user to gain access to sensitive information.

Moodle through 2.6.11, 2.7.x before 2.7.11, 2.8.x before 2.8.9, and 2.9.x before 2.9.3 does not consider the moodle/badges:viewbadges capability, which allows remote authenticated users to obtain sensitive badge information via a request involving (1) badges/overview.php or (2) badges/view.php.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Moodle: 2.7 - 2.9.2

CPE2.3

External links

https://git.moodle.org/gw?p=moodle.git&a=search&h=HEAD&st=commit&s=MDL-51684
https://moodle.org/mod/forum/discuss.php?d=323235

Q & A

Can this vulnerability be exploited remotely?

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

Is there known malware, which exploits this vulnerability?

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

4) Information disclosure

EUVDB-ID: #VU40456

Risk: Low

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

CVE-ID: CVE-2015-5339

CWE-ID: CWE-200 - Information exposure

Exploit availability: No

Description

The vulnerability allows a remote authenticated user to gain access to sensitive information.

The core_enrol_get_enrolled_users web service in enrol/externallib.php in Moodle through 2.6.11, 2.7.x before 2.7.11, 2.8.x before 2.8.9, and 2.9.x before 2.9.3 does not properly implement group-based access restrictions, which allows remote authenticated users to obtain sensitive course-participant information via a web-service request.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Moodle: 2.7 - 2.9.2

CPE2.3

External links

https://git.moodle.org/gw?p=moodle.git&a=search&h=HEAD&st=commit&s=MDL-51861
https://moodle.org/mod/forum/discuss.php?d=323234

Q & A

Can this vulnerability be exploited remotely?

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

Is there known malware, which exploits this vulnerability?

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

5) Cross-site request forgery

EUVDB-ID: #VU40457

Risk: High

CVSSv4.0: 6.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2015-5338

CWE-ID: CWE-352 - Cross-Site Request Forgery (CSRF)

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform cross-site request forgery attacks.

The vulnerability exists due to insufficient validation of the HTTP request origin. A remote attacker can trick the victim to visit a specially crafted web page and (1) mod/lesson/mediafile.php or (2) mod/lesson/view.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Moodle: 2.7 - 2.9.2

CPE2.3

External links

https://git.moodle.org/gw?p=moodle.git&a=search&h=HEAD&st=commit&s=MDL-48109
https://moodle.org/mod/forum/discuss.php?d=323233

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.

6) Cross-site scripting

EUVDB-ID: #VU40458

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-2015-5337

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. The vulnerability allows remote attackers to conduct cross-site scripting (XSS) attacks via a crafted .

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 update from vendor's website.

Vulnerable software versions

Moodle: 2.7 - 2.9.2

CPE2.3

External links

https://git.moodle.org/gw?p=moodle.git&a=search&h=HEAD&st=commit&s=MDL-48085
https://moodle.org/mod/forum/discuss.php?d=323232

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.

7) Cross-site scripting

EUVDB-ID: #VU40459

Risk: Low

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

CVE-ID: CVE-2015-5336

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

Exploit availability: No

Description

The vulnerability allows a remote authenticated user to read and manipulate data.

Multiple cross-site scripting (XSS) vulnerabilities in the survey module in Moodle through 2.6.11, 2.7.x before 2.7.11, 2.8.x before 2.8.9, and 2.9.x before 2.9.3 allow remote authenticated users to inject arbitrary web script or HTML by leveraging the student role and entering a crafted survey answer.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Moodle: 2.7 - 2.9.2

CPE2.3

External links

https://git.moodle.org/gw?p=moodle.git&a=search&h=HEAD&st=commit&s=MDL-49940
https://moodle.org/mod/forum/discuss.php?d=323231

Q & A

Can this vulnerability be exploited remotely?

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

Is there known malware, which exploits this vulnerability?

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

8) Cross-site request forgery

EUVDB-ID: #VU40460

Risk: Low

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

CVE-ID: CVE-2015-5335

CWE-ID: CWE-352 - Cross-Site Request Forgery (CSRF)

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform cross-site request forgery attacks.

The vulnerability exists due to insufficient validation of the HTTP request origin. A remote attacker can trick the victim to visit a specially crafted web page and perform arbitrary actions on behalf of the victim on the vulnerable website.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Moodle: 2.7 - 2.9.2

CPE2.3

External links

https://git.moodle.org/gw?p=moodle.git&a=search&h=HEAD&st=commit&s=MDL-51091
https://moodle.org/mod/forum/discuss.php?d=323230

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.

9) Resource management error

EUVDB-ID: #VU40461

Risk: Medium

CVSSv4.0: 4.6 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2015-5332

CWE-ID: CWE-399 - Resource Management Errors

Exploit availability: No

Description

The vulnerability allows a remote non-authenticated attacker to a crash the entire system.

Atto in Moodle 2.8.x before 2.8.9 and 2.9.x before 2.9.3 allows remote attackers to cause a denial of service (disk consumption) by leveraging the guest role and entering drafts with the editor-autosave feature.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Moodle: 2.8 - 2.9.2

CPE2.3

External links

https://git.moodle.org/gw?p=moodle.git&a=search&h=HEAD&st=commit&s=MDL-51000
https://moodle.org/mod/forum/discuss.php?d=323229

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.

10) Security Features

EUVDB-ID: #VU40462

Risk: Low

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

CVE-ID: CVE-2015-5331

CWE-ID: CWE-254 - Security Features

Exploit availability: No

Description

The vulnerability allows a remote authenticated user to manipulate data.

Moodle 2.9.x before 2.9.3 does not properly check the contact list before authorizing message transmission, which allows remote authenticated users to bypass intended access restrictions and conduct spam attacks via the messaging API.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Moodle: 2.9 - 2.9.2

CPE2.3

cpe:2.3:a:moodle_org:moodle:2.9.2:*:*:*:*:*:*:*

External links

https://git.moodle.org/gw?p=moodle.git&a=search&h=HEAD&st=commit&s=MDL-50426
https://moodle.org/mod/forum/discuss.php?d=323228

Q & A

Can this vulnerability be exploited remotely?

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

Is there known malware, which exploits this vulnerability?

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

Risk	High
Patch available	YES
Number of vulnerabilities	10
CVE-ID	CVE-2015-5342 CVE-2015-5341 CVE-2015-5340 CVE-2015-5339 CVE-2015-5338 CVE-2015-5337 CVE-2015-5336 CVE-2015-5335 CVE-2015-5332 CVE-2015-5331
CWE-ID	CWE-264 CWE-200 CWE-352 CWE-79 CWE-399 CWE-254
Exploitation vector	Network
Public exploit	N/A
Vulnerable software	Moodle Web applications / Other software
Vendor	moodle.org