SonicWall releases second firmware updates for SMA 100 vulnerability
Vulnerabilities mentionedAll →
| CVE | Vulnerability | CVSS | EPSS | Flags | Affected | Exposure | Published |
|---|---|---|---|---|---|---|---|
| CVE-2021-20016 | Unauthenticated SQL Injection in SonicWall SMA100 SSL VPN CVE-2021-20016 is an unauthenticated SQL injection flaw (CWE-89) in the SonicWall SSL-VPN service on SMA 100 appliances. It is triggered remotely by malicious, unauthenticated requests to the appliance's web interface, allowing SQL injection against the backend database. Successful exploitation gives the attacker credential access — harvesting valid user credentials that can then be used to log into the SSL-VPN and pivot into the victim network. Any organization running an internet-facing SonicWall SSLVPN SMA100 appliance is affected, and CISA notes known ransomware use of this flaw. It was added to the CISA Known Exploited Vulnerabilities catalog on 2021-11-03 and carries a 40% EPSS probability of exploitation within 30 days (99th percentile), so it should be treated as actively exploited even though no public proof-of-concept is known. Do: Apply the SonicWall firmware update per vendor instructions, as required by the CISA KEV listing. Because ransomware operators are known to exploit this flaw, review SMA100 authentication and admin logs for unfamiliar logins, rotate exposed credentials, and restrict the appliance to trusted source IPs until it is patched. CVSS has not yet been scored, but the 40% EPSS (99th percentile) and KEV status warrant immediate patching of all internet-exposed units. | 9.8 | 40% | KEV ransomware |
| large≈ tens of thousands of internet-exposed SMA100 appliances (public scan counts of SonicWall SSL-VPN endpoints) |
Full article420 words · extracted from securityaffairs.com · click to collapse
Pierluigi Paganini
February 20, 2021
Security provider SonicWall released a new firmware update for an SMA-100 zero-day vulnerability that was exploited in attacks.
SonicWall has released a second firmware update for the SMA-100 zero-day vulnerability that was exploited in attacks in the wild.
SonicWall disclosed a security breach on January 22, it blamed sophisticated threat actors for the intrusion.
On January, 29 SonicWall announced it was investigating the presence of a zero-day vulnerability in the Secure Mobile Access (SMA) gateways.
NCC Group first disclosed the attacks on SonicWall devices but did not provide details about the flaw exploited by the threat actors.
The vulnerability, tracked as CVE-2021-20016, has been rated as critical and received a CVSS score of 9.8.
A vulnerability results in improper SQL command neutralization in the SonicWall SSLVPN SMA100 product, it could be exploited by a remote, unauthenticated attacker for credential access on SMA100 build version 10.x.
“A vulnerability resulting in improper SQL command neutralization in the SonicWall SSLVPN SMA100 product allows remote exploitation for credential access by an unauthenticated attacker. This vulnerability impacts SMA100 build version 10.x.” reads the advisory.
Early February, SonicWall released the first firmware updates (version 10.2.0.5-29sv) to address an actively exploited zero-day vulnerability in Secure Mobile Access (SMA) 100 series appliances.
This week, SonicWall released new firmware updates for SMA-100 series appliances and urge customers to install them as soon as possible.
The company declared that the security updates include additional security enhancements.
“Following up on the Feb. 3 firmware update outlined below, SonicWall is announcing the availability of new firmware versions for both 10.x and 9.x code on the SMA 100 series products, comprised of SMA 200, 210, 400, 410 physical appliances and the SMA 500v virtual appliance.” reads the security advisory.
“SonicWall conducted additional reviews to further strengthen the code for the SMA 100 series product line. The new SMA 10.2 firmware includes:
- Code-hardening fixes identified during an internal code audit
- Rollup of customer issue fixes not included in the Feb. 3 patch
- General performance enhancements
- Previous SMA 100 series zero-day fixes posted on Feb. 3
The new 9.0 firmware includes:
- Code-hardening fixes identified during an internal code audit“
The updates are available for the following devices:
- Physical Appliances: SMA 200, SMA 210, SMA 400, SMA 410
- Virtual Appliances: SMA 500v (Azure, AWS, ESXi, HyperV)
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Text extracted automatically; images, tables and formatting may be missing. Original: https://securityaffairs.com/114818/security/sonicwall-firmware-updates-sma-100.html