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Medium severity · published Feb 22, 2018
CVE-2018-0203
A vulnerability in the SMTP relay of Cisco Unity Connection could allow an unauthenticated, remote attacker to send unsolicited email messages, aka a Mail Relay Vulnerability
5.3
CVSS
1.6%
EPSS
No
On KEV
Description
A vulnerability in the SMTP relay of Cisco Unity Connection could allow an unauthenticated, remote attacker to send unsolicited email messages, aka a Mail Relay Vulnerability. The vulnerability is due to improper handling of domain information in the affected software. An unauthenticated, remote attacker could exploit this vulnerability by sending crafted requests to the targeted application. A successful exploit could allow the attacker to send email messages to arbitrary addresses. Cisco Bug IDs: CSCvg62215.
CVSS vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
Low
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.6% · higher than 76% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
UC
Unity Connection · Cisco
All versions, or not specified · source: NVD
Affected product
UC
Unity Connection
Cisco
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2018-0203
CVE.org
https://www.cve.org/CVERecord?id=CVE-2018-0203
Third Party Advisory
http://www.securityfocus.com/bid/103142
Third Party Advisory
http://www.securitytracker.com/id/1040413
Vendor Advisory
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180221-cuc
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