CVE-2019-1913Sf-220-24 Firmware Memory Corruption
Multiple vulnerabilities in the web management interface of Cisco Small Business 220 Series Smart Switches could allow an unauthenticated, remote attacker to overflow a buffer, which then allows the execution of arbitrary code with root privileges on the underlying operating…
Published Aug 7, 2019 · Updated Nov 21, 2024
Key Facts
Patch immediately- CVE-2019-1913 is a critical-severity vulnerability (CVSS 9.8 v3) affecting Sf-220-24 Firmware (Cisco), Sf220-24p Firmware (Cisco), Sf220-48 Firmware (Cisco) and 9 more products.
- It is not listed in any known-exploited vulnerabilities catalog. Public exploit code is available.
- EPSS estimates a 26% probability of exploitation in the next 30 days.
- Fixed versions are available, including Sf-220-24 Firmware 1.1.4.4, Sf220-24p Firmware 1.1.4.4, Sf220-48 Firmware 1.1.4.4.
- Brandefense priority: patch immediately, because public exploit code exists for a high-severity flaw.
Scores
CVSS v3
9.8
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS (30-day exploit likelihood)
26%
Higher than 97.9% of all scored CVEs
Exploit maturity
Proof of concept
ATLAS score
38/100
Publication score, see How it works
Exploitation Verdict
KEV listed
Not listed
Federal due date
None
No federal due date
Ransomware use
Not reported
Attributed actors
None named
Exploit & Defence Guidance
Exploit maturity
Proof of concept
Public exploit code
1
Proof-of-concept links
In-the-wild evidence
0
Reports of active use
Advisories And Exploit References
Description
Multiple vulnerabilities in the web management interface of Cisco Small Business 220 Series Smart Switches could allow an unauthenticated, remote attacker to overflow a buffer, which then allows the execution of arbitrary code with root privileges on the underlying operating system. The vulnerabilities are due to insufficient validation of user-supplied input and improper boundary checks when reading data into an internal buffer.
An attacker could exploit these vulnerabilities by sending malicious requests to the web management interface of an affected device. Depending on the configuration of the affected switch, the malicious requests must be sent via HTTP or HTTPS.
Affected Products
12 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| Sf-220-24 FirmwareCisco | See advisory | 1.1.4.4 |
| Sf220-24p FirmwareCisco | See advisory | 1.1.4.4 |
| Sf220-48 FirmwareCisco | See advisory | 1.1.4.4 |
| Sf220-48p FirmwareCisco | See advisory | 1.1.4.4 |
| Sg220-26 FirmwareCisco | See advisory | 1.1.4.4 |
Patched Releases
Sf-220-24 Firmware
1.1.4.4
Sf220-24p Firmware
1.1.4.4
Sf220-48 Firmware
1.1.4.4
Sf220-48p Firmware
1.1.4.4
Sg220-26 Firmware
1.1.4.4
Sg220-26p Firmware
1.1.4.4
Sg220-28 Firmware
1.1.4.4
Sg220-28mp Firmware
1.1.4.4
Sg220-50 Firmware
1.1.4.4
Sg220-50p Firmware
1.1.4.4
Sg220-52 Firmware
1.1.4.4
Cisco Small Business 220 Series Smart Plus Switches
1.1.4.4
Timeline
Publicly disclosed
Aug 7, 2019
Last updated
Nov 21, 2024
Weakness Type
- CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer
FAQ
Common Questions.
Multiple vulnerabilities in the web management interface of Cisco Small Business 220 Series Smart Switches could allow an unauthenticated, remote attacker to overflow a buffer, which then allows the execution of arbitrary code with root privileges on the underlying operating system.
Affected: Sf-220-24 Firmware (Cisco); Sf220-24p Firmware (Cisco); Sf220-48 Firmware (Cisco), among others. The full list is in the CVE brief.
It is not listed in any known-exploited vulnerabilities catalog.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
Public exploit code is available.
Fixed versions are available, including Sf-220-24 Firmware 1.1.4.4, Sf220-24p Firmware 1.1.4.4, Sf220-48 Firmware 1.1.4.4.
Brandefense priority: patch immediately, because public exploit code exists for a high-severity flaw.
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