// For flags

CVE-2021-1539

Cisco ASR 5000 Series Software Authorization Bypass Vulnerabilities

Severity Score

8.8
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

Track
*SSVC
Descriptions

Multiple vulnerabilities in the authorization process of Cisco ASR 5000 Series Software (StarOS) could allow an authenticated, remote attacker to bypass authorization and execute a subset of CLI commands on an affected device. For more information about these vulnerabilities, see the Details section of this advisory.

Múltiples vulnerabilidades en el proceso de autorización de Cisco ASR 5000 Series Software (StarOS), podría permitir a un atacante remoto autenticado omitir la autorización y ejecutar un subconjunto de comandos de CLI en un dispositivo afectado. Para obtener más información sobre estas vulnerabilidades, consulte la sección Detalles de este aviso

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
High
Attack Vector
Network
Attack Complexity
Low
Authentication
Single
Confidentiality
Partial
Integrity
Partial
Availability
Partial
* Common Vulnerability Scoring System
SSVC
  • Decision:Track
Exploitation
None
Automatable
No
Tech. Impact
Partial
* Organization's Worst-case Scenario
Timeline
  • 2020-11-13 CVE Reserved
  • 2021-06-04 CVE Published
  • 2023-08-27 EPSS Updated
  • 2024-11-07 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-863: Incorrect Authorization
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Cisco
Search vendor "Cisco"
Staros
Search vendor "Cisco" for product "Staros"
< 21.16.9
Search vendor "Cisco" for product "Staros" and version " < 21.16.9"
-
Affected
in Cisco
Search vendor "Cisco"
Asr 5000
Search vendor "Cisco" for product "Asr 5000"
--
Safe
Cisco
Search vendor "Cisco"
Staros
Search vendor "Cisco" for product "Staros"
< 21.16.9
Search vendor "Cisco" for product "Staros" and version " < 21.16.9"
-
Affected
in Cisco
Search vendor "Cisco"
Asr 5500
Search vendor "Cisco" for product "Asr 5500"
--
Safe
Cisco
Search vendor "Cisco"
Staros
Search vendor "Cisco" for product "Staros"
< 21.16.9
Search vendor "Cisco" for product "Staros" and version " < 21.16.9"
-
Affected
in Cisco
Search vendor "Cisco"
Asr 5700
Search vendor "Cisco" for product "Asr 5700"
--
Safe
Cisco
Search vendor "Cisco"
Staros
Search vendor "Cisco" for product "Staros"
>= 21.17.0 < 21.17.10
Search vendor "Cisco" for product "Staros" and version " >= 21.17.0 < 21.17.10"
-
Affected
in Cisco
Search vendor "Cisco"
Asr 5000
Search vendor "Cisco" for product "Asr 5000"
--
Safe
Cisco
Search vendor "Cisco"
Staros
Search vendor "Cisco" for product "Staros"
>= 21.17.0 < 21.17.10
Search vendor "Cisco" for product "Staros" and version " >= 21.17.0 < 21.17.10"
-
Affected
in Cisco
Search vendor "Cisco"
Asr 5500
Search vendor "Cisco" for product "Asr 5500"
--
Safe
Cisco
Search vendor "Cisco"
Staros
Search vendor "Cisco" for product "Staros"
>= 21.17.0 < 21.17.10
Search vendor "Cisco" for product "Staros" and version " >= 21.17.0 < 21.17.10"
-
Affected
in Cisco
Search vendor "Cisco"
Asr 5700
Search vendor "Cisco" for product "Asr 5700"
--
Safe
Cisco
Search vendor "Cisco"
Staros
Search vendor "Cisco" for product "Staros"
>= 21.18.0 < 21.18.16
Search vendor "Cisco" for product "Staros" and version " >= 21.18.0 < 21.18.16"
-
Affected
in Cisco
Search vendor "Cisco"
Asr 5000
Search vendor "Cisco" for product "Asr 5000"
--
Safe
Cisco
Search vendor "Cisco"
Staros
Search vendor "Cisco" for product "Staros"
>= 21.18.0 < 21.18.16
Search vendor "Cisco" for product "Staros" and version " >= 21.18.0 < 21.18.16"
-
Affected
in Cisco
Search vendor "Cisco"
Asr 5500
Search vendor "Cisco" for product "Asr 5500"
--
Safe
Cisco
Search vendor "Cisco"
Staros
Search vendor "Cisco" for product "Staros"
>= 21.18.0 < 21.18.16
Search vendor "Cisco" for product "Staros" and version " >= 21.18.0 < 21.18.16"
-
Affected
in Cisco
Search vendor "Cisco"
Asr 5700
Search vendor "Cisco" for product "Asr 5700"
--
Safe
Cisco
Search vendor "Cisco"
Staros
Search vendor "Cisco" for product "Staros"
>= 21.19.0 < 21.19.11
Search vendor "Cisco" for product "Staros" and version " >= 21.19.0 < 21.19.11"
-
Affected
in Cisco
Search vendor "Cisco"
Asr 5000
Search vendor "Cisco" for product "Asr 5000"
--
Safe
Cisco
Search vendor "Cisco"
Staros
Search vendor "Cisco" for product "Staros"
>= 21.19.0 < 21.19.11
Search vendor "Cisco" for product "Staros" and version " >= 21.19.0 < 21.19.11"
-
Affected
in Cisco
Search vendor "Cisco"
Asr 5500
Search vendor "Cisco" for product "Asr 5500"
--
Safe
Cisco
Search vendor "Cisco"
Staros
Search vendor "Cisco" for product "Staros"
>= 21.19.0 < 21.19.11
Search vendor "Cisco" for product "Staros" and version " >= 21.19.0 < 21.19.11"
-
Affected
in Cisco
Search vendor "Cisco"
Asr 5700
Search vendor "Cisco" for product "Asr 5700"
--
Safe
Cisco
Search vendor "Cisco"
Staros
Search vendor "Cisco" for product "Staros"
>= 21.19.n < 21.19.n7
Search vendor "Cisco" for product "Staros" and version " >= 21.19.n < 21.19.n7"
-
Affected
in Cisco
Search vendor "Cisco"
Asr 5000
Search vendor "Cisco" for product "Asr 5000"
--
Safe
Cisco
Search vendor "Cisco"
Staros
Search vendor "Cisco" for product "Staros"
>= 21.19.n < 21.19.n7
Search vendor "Cisco" for product "Staros" and version " >= 21.19.n < 21.19.n7"
-
Affected
in Cisco
Search vendor "Cisco"
Asr 5500
Search vendor "Cisco" for product "Asr 5500"
--
Safe
Cisco
Search vendor "Cisco"
Staros
Search vendor "Cisco" for product "Staros"
>= 21.19.n < 21.19.n7
Search vendor "Cisco" for product "Staros" and version " >= 21.19.n < 21.19.n7"
-
Affected
in Cisco
Search vendor "Cisco"
Asr 5700
Search vendor "Cisco" for product "Asr 5700"
--
Safe
Cisco
Search vendor "Cisco"
Staros
Search vendor "Cisco" for product "Staros"
>= 21.20.0 < 21.20.8
Search vendor "Cisco" for product "Staros" and version " >= 21.20.0 < 21.20.8"
-
Affected
in Cisco
Search vendor "Cisco"
Asr 5000
Search vendor "Cisco" for product "Asr 5000"
--
Safe
Cisco
Search vendor "Cisco"
Staros
Search vendor "Cisco" for product "Staros"
>= 21.20.0 < 21.20.8
Search vendor "Cisco" for product "Staros" and version " >= 21.20.0 < 21.20.8"
-
Affected
in Cisco
Search vendor "Cisco"
Asr 5500
Search vendor "Cisco" for product "Asr 5500"
--
Safe
Cisco
Search vendor "Cisco"
Staros
Search vendor "Cisco" for product "Staros"
>= 21.20.0 < 21.20.8
Search vendor "Cisco" for product "Staros" and version " >= 21.20.0 < 21.20.8"
-
Affected
in Cisco
Search vendor "Cisco"
Asr 5700
Search vendor "Cisco" for product "Asr 5700"
--
Safe
Cisco
Search vendor "Cisco"
Virtualized Packet Core
Search vendor "Cisco" for product "Virtualized Packet Core"
--
Affected