A vulnerability in Cisco IOS Software for Cisco Catalyst 2960X, 2960XR, 2960CX, and 3560CX Series Switches could allow an authenticated, loc
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
- Exploitation: none
- Automatable: no
- Technical impact: total
Summary
A vulnerability in Cisco IOS Software for Cisco Catalyst 2960X, 2960XR, 2960CX, and 3560CX Series Switches could allow an authenticated, local attacker with privilege level 15 or an unauthenticated attacker with physical access to the device to execute persistent code at boot time and break the chain of trust. This vulnerability is due to missing signature verification for specific files that may be loaded during the device boot process. An attacker could exploit this vulnerability by placing a crafted file into a specific location on an affected device. A successful exploit could allow the attacker to execute arbitrary code at boot time. Because this allows the attacker to bypass a major security feature of the device, Cisco has raised the Security Impact Rating (SIR) of this advisory from Medium to High.
Timeline
- CVE published
- CISA SSVC assessment
Exploitation: none · Automatable: no · Technical impact: total
- Record last updated
Affected versions
- Cisco IOS
15.0(1)XO1, 15.0(1)XO, 15.0(2)XO, 15.0(1)EY, 15.0(1)EY1, 15.0(1)EY2, 15.0(2)SE8, 15.0(1)EX, 15.0(2)EX, 15.0(2)EX1, 15.0(2)EX2, 15.0(2)EX3, 15.0(2)EX4, 15.0(2)EX5, 15.0(2)EX8, 15.0(2a)EX5, 15.0(2)EX10, 15.0(2)EX11, 15.0(2)EX13, 15.0(2)EX12, 15.2(2)E, 15.2(3)E, 15.2(2)E1, 15.2(4)E, 15.2(3)E1, 15.2(2)E2, 15.2(2a)E1, 15.2(2)E3, 15.2(2a)E2, 15.2(3)E2, and 76 more