Multiple vulnerabilities in Cisco SD-WAN vManage
| Risk | Medium |
| Patch available | YES |
| Number of vulnerabilities | 5 |
| CVE-ID | CVE-2021-1491 CVE-2021-1481 CVE-2021-1482 CVE-2021-1483 CVE-2021-1484 |
| CWE-ID | CWE-59 CWE-943 CWE-285 CWE-611 CWE-88 |
| Exploitation vector | Network |
| Public exploit | N/A |
| Vulnerable software |
Cisco SD-WAN vManage Other software / Other software solutions |
| Vendor | Cisco Systems, Inc |
Security Bulletin
This security bulletin contains information about 5 vulnerabilities.
1) Link following
EUVDB-ID: #VU52481
Risk: Medium
CVSSv3.1: 5.7 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C]
CVE-ID: CVE-2021-1491
CWE-ID:
CWE-59 - Improper Link Resolution Before File Access ('Link Following')
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to gain access to sensitive information on the system.
The vulnerability exists due to insufficient file scope limiting. A remote authenticated attacker can create a specific file reference on the file system, access it through the web-based management interface and read arbitrary files from the file system of the underlying operating system.
MitigationInstall updates from vendor's website.
Vulnerable software versionsCisco SD-WAN vManage: 19.2.3
CPE2.3 External linksQ & 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) Improper Neutralization of Special Elements in Data Query Logic
EUVDB-ID: #VU52485
Risk: Low
CVSSv3.1: 3.8 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C]
CVE-ID: CVE-2021-1481
CWE-ID:
CWE-943 - Improper Neutralization of Special Elements in Data Query Logic
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to perform a Cypher query language injection attack.
The vulnerability exists due to insufficient input validation by the web-based management interface. A remote authenticated attacker can send specially crafted HTTP requests and obtain sensitive information.
MitigationInstall updates from vendor's website.
Vulnerable software versionsCisco SD-WAN vManage: 20.3.1
CPE2.3 External linksQ & 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) Improper Authorization
EUVDB-ID: #VU52484
Risk: Medium
CVSSv3.1: 5.6 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N/E:U/RL:O/RC:C]
CVE-ID: CVE-2021-1482
CWE-ID:
CWE-285 - Improper Authorization
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to bypass authorization checks.
The vulnerability exists due to insufficient authorization checks. A remote authenticated attacker can send specially crafted HTTP requests to bypass authorization checking and gain access to sensitive information on the affected system.
MitigationInstall updates from vendor's website.
Vulnerable software versionsCisco SD-WAN vManage: 20.3.1
CPE2.3 External linksQ & 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) XML External Entity injection
EUVDB-ID: #VU52483
Risk: Medium
CVSSv3.1: 4.4 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N/E:U/RL:O/RC:C]
CVE-ID: CVE-2021-1483
CWE-ID:
CWE-611 - Improper Restriction of XML External Entity Reference ('XXE')
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to gain access to sensitive information.
The vulnerability exists due to insufficient validation of user-supplied XML input in the web UI. A remote authenticated attacker can pass a specially crafted XML code to the affected application and view contents of arbitrary files on the system or initiate requests to external systems.
Successful exploitation of the vulnerability may allow an attacker to view contents of arbitrary file on the server or perform network scanning of internal and external infrastructure.
MitigationInstall updates from vendor's website.
Vulnerable software versionsCisco SD-WAN vManage: 20.3.1
CPE2.3 External linksQ & 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 Neutralization of Argument Delimiters in a Command
EUVDB-ID: #VU52482
Risk: Medium
CVSSv3.1: 5.7 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2021-1484
CWE-ID:
CWE-88 - Argument Injection or Modification
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to improper input validation in the the device template configuration. A remote authenticated attacker can inject arbitrary commands and cause a denial of service condition on the target system.
MitigationInstall updates from vendor's website.
Vulnerable software versionsCisco SD-WAN vManage: 20.3.1
CPE2.3 External linkshttp://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-vman-cmdinj-nRHKgfHX
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.
