Multiple vulnerabilities in D-Link DSL-2888A
| Risk | High |
| Patch available | YES |
| Number of vulnerabilities | 5 |
| CVE-ID | CVE-2020-24580 CVE-2020-24577 CVE-2020-24578 CVE-2020-24581 CVE-2020-24579 |
| CWE-ID | CWE-287 CWE-200 CWE-16 CWE-912 CWE-384 |
| Exploitation vector | Network |
| Public exploit |
Public exploit code for vulnerability #1 is available. Public exploit code for vulnerability #2 is available. Public exploit code for vulnerability #3 is available. Public exploit code for vulnerability #4 is available. Public exploit code for vulnerability #5 is available. |
| Vulnerable software Subscribe |
DSL-2888A Hardware solutions / Routers for home users |
| Vendor | D-Link |
Security Bulletin
This security bulletin contains information about 5 vulnerabilities.
1) Improper Authentication
EUVDB-ID: #VU49088
Risk: High
CVSSv3.1: 8.2 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N/E:P/RL:O/RC:C]
CVE-ID: CVE-2020-24580
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 when processing authentication requests. A remote attacker can bypass authentication process and gain unauthorized access to the application.
MitigationInstall updates from vendor's website.
Vulnerable software versionsDSL-2888A: 2.00 - 2.29
External linkshttp://www.trustwave.com/en-us/resources/security-resources/security-advisories/?fid=28241
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 device in order to exploit this vulnerability.
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.
2) Information disclosure
EUVDB-ID: #VU49089
Risk: Medium
CVSSv3.1: 5.9 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/E:P/RL:O/RC:C]
CVE-ID: CVE-2020-24577
CWE-ID:
CWE-200 - Information exposure
Exploit availability: No
DescriptionThe vulnerability allows a remote user to gain access to potentially sensitive information.
The vulnerability exists due to excessive data output by the application at the following URLs:
http://DeviceIP/tmp/home/wan_stat
http://DeviceIP/tmp/var/passwd
A remote authenticated user can obtain internet connection credentials and password hash of the admin account by inspecting the application's response body.
Install updates from vendor's website.
Vulnerable software versionsDSL-2888A: 2.00 - 2.29
External linkshttp://www.trustwave.com/en-us/resources/security-resources/security-advisories/?fid=28241
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 device in order to exploit this vulnerability.
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.
3) Configuration
EUVDB-ID: #VU49090
Risk: Medium
CVSSv3.1: 5.9 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/E:P/RL:O/RC:C]
CVE-ID: CVE-2020-24578
CWE-ID:
CWE-16 - Configuration
Exploit availability: No
DescriptionThe vulnerability allows a remote user to gain access to sensitive information.
The vulnerability exists due to misconfigured FTP service. A remote authenticated user can access system folders and download sensitive files, such as password hash file.
Install updates from vendor's website.
Vulnerable software versionsDSL-2888A: 2.00 - 2.29
External linkshttp://www.trustwave.com/en-us/resources/security-resources/security-advisories/?fid=28241
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 device in order to exploit this vulnerability.
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.
4) Hidden functionality
EUVDB-ID: #VU49091
Risk: Medium
CVSSv3.1: 7.3 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N/E:P/RL:O/RC:C]
CVE-ID: CVE-2020-24581
CWE-ID:
CWE-912 - Hidden Functionality (Backdoor)
Exploit availability: No
DescriptionThe vulnerability allows a remote user to escalate privileges on the device.
The vulnerability exists due to presence of hidden functionality in firmware. A remote authenticated user can execute arbitrary OS commands via "cmd" parameter to "/cgi-bin/execute_cmd.cgi" script.
Example:
http://DeviceIP/cgi-bin/execute_cmd.cgi?timestamp=1589333279490&cmd=ls
Install updates from vendor's website.
Vulnerable software versionsDSL-2888A: 2.00 - 2.29
External linkshttp://www.trustwave.com/en-us/resources/security-resources/security-advisories/?fid=28241
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 device in order to exploit this vulnerability.
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.
5) Session fixation
EUVDB-ID: #VU49092
Risk: Medium
CVSSv3.1: 6.7 [CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N/E:P/RL:O/RC:C]
CVE-ID: CVE-2020-24579
CWE-ID:
CWE-384 - Session Fixation
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to gain unauthorized access to the device.
The vulnerability exists due to incorrect session management mechanism, which solely relies on the user's IP address. A remote attacker with ability to use the victim's IP address can gain unauthorized access to victim's session, after victim successfully logs in onto the device.
Install updates from vendor's website.
Vulnerable software versionsDSL-2888A: 2.00 - 2.29
External linkshttp://www.trustwave.com/en-us/resources/security-resources/security-advisories/?fid=28241
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 device in order to exploit this vulnerability.
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.
