Multiple vulnerabilities in Moodle
| Risk | Low |
| Patch available | YES |
| Number of vulnerabilities | 5 |
| CVE-ID | CVE-2019-10187 CVE-2019-10186 CVE-2019-10188 CVE-2019-10189 CVE-2018-17057 |
| CWE-ID | CWE-284 CWE-352 CWE-264 CWE-502 |
| Exploitation vector | Network |
| Public exploit | Public exploit code for vulnerability #5 is available. |
| Vulnerable software Subscribe |
Moodle Web applications / Other software |
| Vendor | moodle.org |
Security Bulletin
This security bulletin contains information about 5 vulnerabilities.
1) Improper access control
EUVDB-ID: #VU19212
Risk: Low
CVSSv3.1: 3.8 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C]
CVE-ID: CVE-2019-10187
CWE-ID:
CWE-284 - Improper Access Control
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to delete glossary entries.
The vulnerability exists due to improper access restrictions when deleting glossary entries. A remote authenticated attacker can delete arbitrary entries from glossaries that do not belong to the user.
Install updates from vendor's website.
Vulnerable software versionsMoodle: 3.0.0 - 3.7.0 rc2
External linkshttp://moodle.org/mod/forum/discuss.php?d=388568
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) Cross-site request forgery
EUVDB-ID: #VU19211
Risk: Low
CVSSv3.1: 3.8 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N/E:U/RL:O/RC:C]
CVE-ID: CVE-2019-10186
CWE-ID:
CWE-352 - Cross-Site Request Forgery (CSRF)
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to perform cross-site request forgery attacks.
The vulnerability exists due to insufficient validation of the HTTP request origin when loading or unloading XML files. A remote attacker can trick the victim to visit a specially crafted web page and load or unload arbitrary XML files on behalf of the victim on the vulnerable website.
MitigationInstall updates from vendor's website.
Vulnerable software versionsMoodle: 3.0.0 - 3.7.0 rc2
External linkshttp://moodle.org/mod/forum/discuss.php?d=388567
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) Permissions, Privileges, and Access Controls
EUVDB-ID: #VU19213
Risk: Low
CVSSv3.1: 3.8 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N/E:U/RL:O/RC:C]
CVE-ID: CVE-2019-10188
CWE-ID:
CWE-264 - Permissions, Privileges, and Access Controls
Exploit availability: No
DescriptionThe vulnerability allows a remote authenticated user to change group permissions.
The vulnerability exists due to incorrect handling of group membership rights. A remote authenticated teacher in a quiz group can modify group overrides for other groups in the same quiz.
MitigationInstall updates from vendor's website.
Vulnerable software versionsMoodle: 3.0.0 - 3.7.0 rc2
External linkshttp://moodle.org/mod/forum/discuss.php?d=388569
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) Permissions, Privileges, and Access Controls
EUVDB-ID: #VU19214
Risk: Low
CVSSv3.1: 3.8 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N/E:U/RL:O/RC:C]
CVE-ID: CVE-2019-10189
CWE-ID:
CWE-264 - Permissions, Privileges, and Access Controls
Exploit availability: No
DescriptionThe vulnerability allows a remote authenticated user to change group permissions.
The vulnerability exists due to incorrect handling of group membership rights. A remote authenticated teacher in an assignment group can modify group overrides for other groups in the same assignment
MitigationInstall updates from vendor's website.
Vulnerable software versionsMoodle: 3.0.0 - 3.7.0 rc2
External linkshttp://moodle.org/mod/forum/discuss.php?d=388570
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) Deserialization of Untrusted Data
EUVDB-ID: #VU18050
Risk: High
CVSSv3.1: 8.8 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C]
CVE-ID: CVE-2018-17057
CWE-ID:
CWE-502 - Deserialization of Untrusted Data
Exploit availability: Yes
DescriptionThe vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to insecure input validation when processing serialized data passed via the phar:// wrapper. A remote attacker can pass specially crafted data to the application and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
MitigationInstall the latest version from vendor's website that fixes the issue with vulnerable third-party tcppdf library.
Vulnerable software versionsMoodle: 3.0.0 - 3.7.0 rc2
External linkshttp://moodle.org/mod/forum/discuss.php?d=388571
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. However, proof of concept for this vulnerability is available.
