Insecure DLL loading in Cisco Packet Tracer for Windows
| Risk | Low |
| Patch available | YES |
| Number of vulnerabilities | 1 |
| CVE-ID | CVE-2021-1593 |
| CWE-ID | CWE-427 |
| Exploitation vector | Local |
| Public exploit | N/A |
| Vulnerable software |
Cisco Packet Tracer for Windows Server applications / Other server solutions |
| Vendor | Cisco Systems, Inc |
Security Bulletin
This security bulletin contains one low risk vulnerability.
1) Insecure DLL loading
EUVDB-ID: #VU55605
Risk: Low
CVSSv4.0: 5.6 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:A/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:U/U:Clear]
CVE-ID: CVE-2021-1593
CWE-ID:
CWE-427 - Uncontrolled Search Path Element
Exploit availability: No
DescriptionThe vulnerability allows a local user to compromise vulnerable system.
The vulnerability exists due to incorrect handling of directory paths at run time. A local user can place a specially crafted .dll file and execute arbitrary code on victim's system.
MitigationInstall updates from vendor's website.
Vulnerable software versionsCisco Packet Tracer for Windows: 7.3.1 - 8.0.0
CPE2.3- cpe:2.3:a:cisco_systems:cisco_packet_tracer_for_windows:7.3.1:*:*:*:*:*:*:*
- cpe:2.3:a:cisco_systems:cisco_packet_tracer_for_windows:8.0.0:*:*:*:*:*:*:*
Q & A
Can this vulnerability be exploited remotely?
No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
