Multiple vulnerabilities in Cybozu Garoon
| Risk | Medium |
| Patch available | YES |
| Number of vulnerabilities | 5 |
| CVE-ID | CVE-2020-5563 CVE-2020-5564 CVE-2020-5565 CVE-2020-5566 CVE-2020-5567 |
| CWE-ID | CWE-287 CWE-79 CWE-20 CWE-285 |
| Exploitation vector | Network |
| Public exploit | N/A |
| Vulnerable software Subscribe |
Cybozu Garoon Web applications / Other software |
| Vendor | Cybozu |
Security Bulletin
This security bulletin contains information about 5 vulnerabilities.
1) Improper Authentication
EUVDB-ID: #VU27331
Risk: Medium
CVSSv3.1: 4.6 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C]
CVE-ID: CVE-2020-5563
CWE-ID:
CWE-287 - Improper Authentication
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to bypass authentication process.
The vulnerability exists due to an error in authentication process. A remote attacker with access to the API provided by the product can bypass authentication process and gain unauthorized access to sensitive information on the target systen.
MitigationInstall updates from vendor's website.
Vulnerable software versionsCybozu Garoon: 4.0.0 - 4.10.3
External linkshttp://jvn.jp/en/jp/JVN35649781/index.html
http://kb.cybozu.support/article/36118/
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) Cross-site scripting
EUVDB-ID: #VU27332
Risk: Low
CVSSv3.1: 5.3 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N/E:U/RL:O/RC:C]
CVE-ID: CVE-2020-5564
CWE-ID:
CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Exploit availability: No
DescriptionThe 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 the application "E-mail". 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.
MitigationInstall updates from vendor's website.
Vulnerable software versionsCybozu Garoon: 4.0.0 - 4.10.3
External linkshttp://jvn.jp/en/jp/JVN35649781/index.html
http://kb.cybozu.support/article/36116/
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) Input validation error
EUVDB-ID: #VU27335
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-2020-5565
CWE-ID:
CWE-20 - Improper input validation
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to compromise the target system.
The vulnerability exists due to insufficient validation of user-supplied input in the applications "Workflow" and "MultiReport". A remote authenticated attacker can pass specially crafted input to the application and alter applications' data.
MitigationInstall updates from vendor's website.
Vulnerable software versionsCybozu Garoon: 4.0.0 - 4.10.3
External linkshttp://jvn.jp/en/jp/JVN35649781/index.html
http://kb.cybozu.support/article/36119/
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) Improper Authorization
EUVDB-ID: #VU27337
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-2020-5566
CWE-ID:
CWE-285 - Improper Authorization
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to bypass authorization checks.
The vulnerability exists due to missing authorization checks in the applications "E-mail" and "Messages". A remote authenticated attacker can alter applications' data.
Note: This vulnerability affects the applications "E-mail" and "Messages" in versions 4.0.0 to 4.0.2, and "Messages" in versions 4.0.3 to 4.10.3.
MitigationInstall updates from vendor's website.
Vulnerable software versionsCybozu Garoon: 4.0.0 - 4.10.3
External linkshttp://jvn.jp/en/jp/JVN35649781/index.html
http://kb.cybozu.support/article/36113/
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) Improper Authentication
EUVDB-ID: #VU27340
Risk: Medium
CVSSv3.1: 4.6 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C]
CVE-ID: CVE-2020-5567
CWE-ID:
CWE-287 - Improper Authentication
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to bypass authentication process.
The vulnerability exists due to an error in Application Menu. A remote attacker can bypass authentication process and obtain data of Application Menu.
MitigationInstall updates from vendor's website.
Vulnerable software versionsCybozu Garoon: 4.0.0 - 4.10.3
External linkshttp://jvn.jp/en/jp/JVN35649781/index.html
http://kb.cybozu.support/article/36114/
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.
