Vulnerability Details : CVE-2019-1854
A vulnerability in the management web interface of Cisco Expressway Series could allow an authenticated, remote attacker to perform a directory traversal attack against an affected device. The vulnerability is due to insufficient input validation on the web interface. An attacker could exploit this vulnerability by sending a crafted HTTP request to the web interface. A successful exploit could allow the attacker to bypass security restrictions and access the web interface of a Cisco Unified Communications Manager associated with the affected device. Valid credentials would still be required to access the Cisco Unified Communications Manager interface.
Vulnerability category: Directory traversal
Products affected by CVE-2019-1854
- cpe:2.3:a:cisco:telepresence_video_communication_server:x8.11.4:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2019-1854
0.44%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 74 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2019-1854
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
4.0
|
MEDIUM | AV:N/AC:L/Au:S/C:P/I:N/A:N |
8.0
|
2.9
|
NIST | |
|
4.3
|
MEDIUM | CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N |
2.8
|
1.4
|
NIST | |
|
4.1
|
MEDIUM | CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:C/C:N/I:L/A:N |
2.3
|
1.4
|
Cisco Systems, Inc. |
CWE ids for CVE-2019-1854
-
The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.Assigned by:
- nvd@nist.gov (Primary)
- ykramarz@cisco.com (Secondary)
References for CVE-2019-1854
-
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190501-expressway-traversal
Cisco Expressway Series Directory Traversal VulnerabilityVendor Advisory
-
http://seclists.org/fulldisclosure/2019/May/28
Full Disclosure: [RT-SA-2019-002] Directory Traversal in Cisco Expressway Gateway
-
http://www.securityfocus.com/bid/108154
Cisco Expressway Series CVE-2019-1854 Directory Traversal Vulnerability
-
https://seclists.org/bugtraq/2019/May/49
Bugtraq: [RT-SA-2019-002] Directory Traversal in Cisco Expressway Gateway
-
http://packetstormsecurity.com/files/152963/Cisco-Expressway-Gateway-11.5.1-Directory-Traversal.html
Cisco Expressway Gateway 11.5.1 Directory Traversal ≈ Packet Storm
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