CVE-2017-3224
Quagga OSPF Link State Advertisement (LSA) Sequence Checksum Vulnerability
Description
Open Shortest Path First (OSPF) protocol implementations may improperly determine Link State Advertisement (LSA) recency for LSAs with MaxSequenceNumber. According to RFC 2328 section 13.1, for two instances of the same LSA, recency is determined by first comparing sequence numbers, then checksums, and finally MaxAge. In a case where the sequence numbers are the same, the LSA with the larger checksum is considered more recent, and will not be flushed from the Link State Database (LSDB). Since the RFC does not explicitly state that the values of links carried by a LSA must be the same when prematurely aging a self-originating LSA with MaxSequenceNumber, it is possible in vulnerable OSPF implementations for an attacker to craft a LSA with MaxSequenceNumber and invalid links that will result in a larger checksum and thus a 'newer' LSA that will not be flushed from the LSDB. Propagation of the crafted LSA can result in the erasure or alteration of the routing tables of routers within the routing domain, creating a denial of service condition or the re-routing of traffic on the network. CVE-2017-3224 has been reserved for Quagga and downstream implementations (SUSE, openSUSE, and Red Hat packages).
INFO
Published Date :
July 24, 2018, 3:29 p.m.
Last Modified :
Oct. 9, 2019, 11:27 p.m.
Source :
[email protected]
Remotely Exploitable :
No
Impact Score :
6.0
Exploitability Score :
1.6
Affected Products
The following products are affected by CVE-2017-3224
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2017-3224.
| URL | Resource |
|---|---|
| https://www.kb.cert.org/vuls/id/793496 | Third Party Advisory US Government Resource |
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2017-3224 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2017-3224 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
CVE Modified by [email protected]
Oct. 09, 2019
Action Type Old Value New Value Added CWE CERT/CC CWE-354 -
Initial Analysis by [email protected]
Oct. 04, 2018
Action Type Old Value New Value Added CVSS V2 (AV:A/AC:M/Au:N/C:N/I:P/A:P) Added CVSS V3 AV:A/AC:H/PR:N/UI:N/S:C/C:L/I:H/A:H Changed Reference Type https://www.kb.cert.org/vuls/id/793496 No Types Assigned https://www.kb.cert.org/vuls/id/793496 Third Party Advisory, US Government Resource Added CWE CWE-345 Added CPE Configuration OR *cpe:2.3:a:quagga:quagga:-:*:*:*:*:*:*:* Added CPE Configuration OR *cpe:2.3:o:suse:opensuse:-:*:*:*:*:*:*:* *cpe:2.3:o:suse:suse_linux:-:*:*:*:*:*:*:* Added CPE Configuration OR *cpe:2.3:a:redhat:package_manager:-:*:*:*:*:*:*:*
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2017-3224 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2017-3224
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.08 }} 0.00%
score
0.32923
percentile