Vulnerability Details : CVE-2021-1258
A vulnerability in the upgrade component of Cisco AnyConnect Secure Mobility Client could allow an authenticated, local attacker with low privileges to read arbitrary files on the underlying operating system (OS) of an affected device. The vulnerability is due to insufficient file permission restrictions. An attacker could exploit this vulnerability by sending a crafted command from the local CLI to the application. A successful exploit could allow the attacker to read arbitrary files on the underlying OS of the affected device. The attacker would need to have valid user credentials to exploit this vulnerability.
Products affected by CVE-2021-1258
- cpe:2.3:a:cisco:anyconnect_secure_mobility_client:*:*:*:*:*:windows:*:*
- cpe:2.3:a:cisco:anyconnect_secure_mobility_client:*:*:*:*:*:linux_kernel:*:*
- cpe:2.3:a:cisco:anyconnect_secure_mobility_client:*:*:*:*:*:macos:*:*
- cpe:2.3:a:mcafee:agent_epolicy_orchestrator_extension:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2021-1258
0.04%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 6 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-1258
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
2.1
|
LOW | AV:L/AC:L/Au:N/C:P/I:N/A:N |
3.9
|
2.9
|
NIST | |
|
5.5
|
MEDIUM | CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N |
1.8
|
3.6
|
Cisco Systems, Inc. | |
|
5.5
|
MEDIUM | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N |
1.8
|
3.6
|
NIST |
CWE ids for CVE-2021-1258
-
Assigned by: ykramarz@cisco.com (Secondary)
-
The product does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor.Assigned by: nvd@nist.gov (Primary)
References for CVE-2021-1258
-
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-anyconnect-fileread-PbHbgHMj
Cisco AnyConnect Secure Mobility Client Arbitrary File Read VulnerabilityVendor Advisory
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https://kc.mcafee.com/corporate/index?page=content&id=SB10382
Security Bulletin - McAfee Agent update fixes three vulnerabilities (CVE-2021-1256, CVE-2021-1257, and CVE-2021-1258)Third Party Advisory
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