Vulnerability Name:

CVE-2017-6774 (CCN-130538)

Assigned:2017-08-16
Published:2017-08-16
Updated:2019-10-03
Summary:A vulnerability in Cisco ASR 5000 Series Aggregated Services Routers running the Cisco StarOS operating system could allow an authenticated, remote attacker to overwrite or modify sensitive system files. The vulnerability is due to the inclusion of sensitive system files within specific FTP subdirectories. An attacker could exploit this vulnerability by overwriting sensitive configuration files through FTP. An exploit could allow the attacker to overwrite configuration files on an affected system. Cisco Bug IDs: CSCvd47739. Known Affected Releases: 21.0.v0.65839.
CVSS v3 Severity:5.0 Medium (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:L/A:N)
4.4 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:L/A:N/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope:Scope (S): Changed
Impact Metrics:Confidentiality (C): None
Integrity (I): Low
Availibility (A): None
4.1 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:N/I:L/A:N)
3.6 Low (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:N/I:L/A:N/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): Required
Scope:Scope (S): Changed
Impact Metrics:Confidentiality (C): None
Integrity (I): Low
Availibility (A): None
CVSS v2 Severity:4.0 Medium (CVSS v2 Vector: AV:N/AC:L/Au:S/C:N/I:P/A:N)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Authentication (Au): Single_Instance
Impact Metrics:Confidentiality (C): None
Integrity (I): Partial
Availibility (A): None
4.0 Medium (CCN CVSS v2 Vector: AV:N/AC:L/Au:S/C:N/I:P/A:N)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Athentication (Au): Single_Instance
Impact Metrics:Confidentiality (C): None
Integrity (I): Partial
Availibility (A): None
Vulnerability Type:CWE-552
Vulnerability Consequences:File Manipulation
References:Source: MITRE
Type: CNA
CVE-2017-6774

Source: BID
Type: Third Party Advisory, VDB Entry
100386

Source: CCN
Type: BID-100386
Cisco StarOS for ASR 5000 Series Routers CVE-2017-6774 Arbitrary File Write Vulnerability

Source: SECTRACK
Type: Third Party Advisory, VDB Entry
1039182

Source: XF
Type: UNKNOWN
cisco-cve20176774-file-overwrite(130538)

Source: CCN
Type: Cisco Security Advisory cisco-sa-20170816-staros2
Cisco StarOS for ASR 5000 Series Routers FTP Configuration File Modification Vulnerability

Source: CISCO
Type: Vendor Advisory
20170816 Cisco StarOS for ASR 5000 Series Routers FTP Configuration File Modification Vulnerability

Vulnerable Configuration:Configuration 1:
  • cpe:/a:cisco:asr_5000_software:21.0.v0.65839:*:*:*:*:*:*:*

    • Configuration CCN 1:
  • cpe:/o:cisco:staros:*:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    BACK
    cisco asr 5000 software 21.0.v0.65839
    cisco staros *