RV320 與 RV325 路由器的修補程式不完整，Cisco 予以修復，另外還修復兩個新錯誤 (CVE-2019-1827、CVE-2019-1828)
Cisco finalizes patch for RV320 and RV325 after researchers determined a previous patch was incomplete.
背景說明
On April 4, Cisco published updated advisories to address two vulnerabilities in its RV320 and RV325 routers that were originally reported in January 2019. Additionally, Cisco published advisories for two newly discovered, medium severity bugs in the same routers.
分析
Tenable blogged about these vulnerabilities -- CVE-2019-1652 and CVE-2019-1653 -- in late January when public exploit scripts were published. Shortly after publication, reports about exploit attempts against these devices surfaced. Additionally, Troy Mursch, (@bad_packets), reported over 9,000 devices were reportedly vulnerable to exploitation.
Initially, Cisco said it had patched these vulnerabilities in firmware versions 1.4.2.20 and later (CVE-2019-1652) and firmware versions 1.4.2.19 and later (CVE-2019-1653). However, three recent advisories from RedTeam Pentesting GmbH including new proof of concept (PoC) code were published on March 27, indicating that the previous patches were incomplete. Cisco confirmed the findings from RedTeam Pentesting and indicated that a complete patch was imminent. Troy Mursch updated his previous blog post, highlighting that over 8,000 devices were still vulnerable to CVE-2019-1653.
Using the latest data from @binaryedgeio, we've scanned 14,045 Cisco RV320/RV325 routers and found 8,827 are leaking their configuration file, including admin credentials, to the public internet.
— Bad Packets Report (@bad_packets) March 28, 2019
Map of total vulnerable hosts found per country: https://t.co/8TDKyIGUTe pic.twitter.com/7ffywLebEt
In addition to these updated advisories, Cisco published two new advisories for medium severity bugs in the same routers. CVE-2019-1827 is a reflected cross-site scripting (XSS) vulnerability in the Online Help web service on the routers, while CVE-2019-1828 is a weak credential encryption vulnerability. Both vulnerabilities could be exploited by an unauthenticated, remote attacker. The latter could reveal encrypted administrative credentials, but requires the attacker to be operating as a man-in-the-middle. Because the device uses a weak encryption algorithm, a man-in-the-middle would likely be able to decrypt these credentials and gain administrative access to the vulnerable device.
解決方法
Cisco says firmware version 1.4.2.22 for RV320 and RV325 addresses the incomplete fixes for CVE-2019-1652 and CVE-2019-1653. The release notes for 1.4.2.22 show that CVE-2019-1827 and CVE-2019-1828 are also addressed based on the associated Cisco Bug IDs.
找出受影響的系統
A list of Nessus plugins to identify these vulnerabilities will appear here as they’re released.
取得更多資訊
- Cisco Small Business RV320 and RV325 Routers Command Injection Vulnerability
- Cisco Small Business RV320 and RV325 Routers Information Disclosure Vulnerability
- Cisco Small Business RV320 and RV325 Routers Online Help Reflected Cross-Site Scripting Vulnerability
- Cisco Small Business RV320 and RV325 Routers Weak Credential Encryption Vulnerability
- Tenable Blog: Public Exploit Scripts for Vulnerable Cisco Small Business RV320 and RV325 Devices Now Available
加入 Tenable Community 的 Tenable 安全回應團隊。
深入瞭解 Tenable，這是用於全面管理新型攻擊破綻的首創 Cyber Exposure 平台。
Get a free 60-day trial of Tenable.io Vulnerability Management.
相關文章
Operational Technology in the DoD: Ensuring a Secure and Efficient Power Grid
April 19, 2024In an evolving threat landscape, the DoD must make sure that its mission-critical operations don’t experience power outages.
Cybersecurity Snapshot: What’s in Store for 2024 in Cyberland? Check Out Tenable Experts’ Predictions for OT Security, AI, Cloud Security, IAM and more
December 29, 2023The new year is upon us, and so we ponder the question: What cybersecurity trends will shape 2024? To find out, we asked Tenable experts to read the tea leaves. Their 2024 forecasts include: A bigger security role for cloud architects; a focus by ransomware gangs on OT systems in critical industries; an intensification of IAM attacks; and much more!
Cybersecurity Snapshot: Find MITRE ATT&CK Complex? Need Help Mapping to It? There’s an App for That!
March 10, 2023Learn about a new tool that streamlines MITRE ATT&CK mapping. Plus, known vulnerabilities remain a major cyber risk – just ask LastPass. Also, discover why SaaS data protection remains difficult. Plus, a look at the U.S. National Cybersecurity Strategy. And much more!
Cybersecurity Snapshot: Latest MITRE ATT&CK Update Offers Security Insights on GenAI, Identity, Cloud and CI/CD
April 26, 2024Check out what’s new in Version 15 of the MITRE ATT&CK knowledge base of adversary tactics, techniques and procedures. Plus, learn the latest details about the Change Healthcare breach, including the massive scope of the data exfiltration. In addition, why AI cyberthreats aren’t impacting CISOs’ budgets. And much more!
CVE-2024-20353, CVE-2024-20359: Frequently Asked Questions About ArcaneDoor
April 25, 2024Frequently asked questions about CVE-2024-20353 and CVE-2024-20359, two vulnerabilities associated with “ArcaneDoor,” the espionage-related campaign targeting Cisco Adaptive Security Appliances.
CVE-2024-4040: CrushFTP Virtual File System (VFS) Sandbox Escape Vulnerability Exploited
April 23, 2024A zero-day vulnerability in CrushFTP was exploited in the wild against multiple U.S. entities prior to fixed versions becoming available as the vendor recommends customers upgrade as soon as possible.
- Threat Management
- Vulnerability Management
- Vulnerability Scanning