Strix
26.1K

CVE-2021-1391

MEDIUMCVSS 6.7/10EPSS 0.31%

Last modified

CVE-2021-1391 is a medium-severity vulnerability rated 6.7/10 on the CVSS scale. A vulnerability in the dragonite debugger of Cisco IOS XE Software could allow an authenticated, local attacker to escalate from privilege level 15 to root privilege. The vulnerability is due to the presence of development testing and verification scripts that remained on the device. EPSS estimates a 0.31% chance of exploitation in the next 30 days.

Description

A vulnerability in the dragonite debugger of Cisco IOS XE Software could allow an authenticated, local attacker to escalate from privilege level 15 to root privilege. The vulnerability is due to the presence of development testing and verification scripts that remained on the device. An attacker could exploit this vulnerability by bypassing the consent token mechanism with the residual scripts on the affected device. A successful exploit could allow the attacker to escalate from privilege level 15 to root privilege.

Metrics

CVSS 3.1
6.7/10

CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

EPSS Probability
0.31%

22.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
CiscoIos12.2\(6\)i1
CiscoIos15.0\(2\)se13a
CiscoIos15.1\(3\)svr1
CiscoIos15.1\(3\)svr2
CiscoIos15.1\(3\)svr3
CiscoIos15.1\(3\)svs
CiscoIos15.1\(3\)svs1
CiscoIos15.2\(4\)ea10
CiscoIos15.2\(5\)e
CiscoIos15.2\(5\)e1
CiscoIos15.2\(5\)e2
CiscoIos15.2\(5\)e2b
CiscoIos15.2\(5\)e2c
CiscoIos15.2\(5\)ea
CiscoIos15.2\(5\)ex
CiscoIos15.2\(5a\)e
CiscoIos15.2\(5a\)e1
CiscoIos15.2\(5b\)e
CiscoIos15.2\(5c\)e
CiscoIos15.2\(6\)e
CiscoIos15.2\(6\)e0a
CiscoIos15.2\(6\)e0c
CiscoIos15.2\(6\)e1
CiscoIos15.2\(6\)e1a
CiscoIos15.2\(6\)e1s
CiscoIos15.2\(6\)e2
CiscoIos15.2\(6\)e2a
CiscoIos15.2\(6\)e2b
CiscoIos15.2\(6\)e3
CiscoIos15.2\(6\)eb
CiscoIos15.2\(7\)e
CiscoIos15.2\(7\)e0a
CiscoIos15.2\(7\)e0b
CiscoIos15.2\(7\)e0s
CiscoIos15.2\(7\)e1
CiscoIos15.2\(7\)e1a
CiscoIos15.2\(7\)e2
CiscoIos15.2\(7\)e2a
CiscoIos15.2\(7\)e2b
CiscoIos15.2\(7\)e3
CiscoIos15.2\(7\)e3k
CiscoIos15.2\(7a\)e0b
CiscoIos15.2\(7b\)e0b
CiscoIos15.3\(3\)jf13
CiscoIos Xe3.9.0e
CiscoIos Xe3.9.1e
CiscoIos Xe3.9.2be
CiscoIos Xe3.9.2e
CiscoIos Xe3.10.0ce
CiscoIos Xe3.10.0e

Showing 50 of 134 affected configurations. See NVD for the full list.

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2021-1391?
A vulnerability in the dragonite debugger of Cisco IOS XE Software could allow an authenticated, local attacker to escalate from privilege level 15 to root privilege. The vulnerability is due to the presence of development testing and verification scripts that remained on the device. An attacker could exploit this vulnerability by bypassing the consent token mechanism with the residual scripts on the affected device. A successful exploit could allow the attacker to escalate from privilege level 15 to root privilege.
How severe is CVE-2021-1391?
CVE-2021-1391 has a CVSS score of 6.7/10 (MEDIUM severity). The EPSS model estimates a 0.31% probability of exploitation in the next 30 days.
How do I fix CVE-2021-1391?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-1391?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST