5.3
MEDIUM
CVE-2023-38283
OpenBGPD BGP Session Reset Vulnerability
Description

In OpenBGPD before 8.1, incorrect handling of BGP update data (length of path attributes) set by a potentially distant remote actor may cause the system to incorrectly reset a session. This is fixed in OpenBSD 7.3 errata 006.

INFO

Published Date :

Aug. 29, 2023, 4:15 p.m.

Last Modified :

Nov. 21, 2024, 8:13 a.m.

Remotely Exploitable :

Yes !

Impact Score :

1.4

Exploitability Score :

3.9
Affected Products

The following products are affected by CVE-2023-38283 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.

ID Vendor Product Action
1 Openbsd openbsd
1 Openbgpd openbgpd

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-2023-38283 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2023-38283 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 af854a3a-2127-422b-91ae-364da2661108

    Nov. 21, 2024

    Action Type Old Value New Value
    Added Reference https://blog.benjojo.co.uk/post/bgp-path-attributes-grave-error-handling
    Added Reference https://ftp.openbsd.org/pub/OpenBSD/patches/7.3/common/006_bgpd.patch.sig
    Added Reference https://github.com/openbgpd-portable/openbgpd-portable/releases/tag/8.1
    Added Reference https://news.ycombinator.com/item?id=37305800
    Added Reference https://www.openbsd.org/errata73.html
  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • Initial Analysis by [email protected]

    Sep. 07, 2023

    Action Type Old Value New Value
    Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
    Changed Reference Type https://blog.benjojo.co.uk/post/bgp-path-attributes-grave-error-handling No Types Assigned https://blog.benjojo.co.uk/post/bgp-path-attributes-grave-error-handling Exploit, Third Party Advisory
    Changed Reference Type https://ftp.openbsd.org/pub/OpenBSD/patches/7.3/common/006_bgpd.patch.sig No Types Assigned https://ftp.openbsd.org/pub/OpenBSD/patches/7.3/common/006_bgpd.patch.sig Patch
    Changed Reference Type https://github.com/openbgpd-portable/openbgpd-portable/releases/tag/8.1 No Types Assigned https://github.com/openbgpd-portable/openbgpd-portable/releases/tag/8.1 Release Notes
    Changed Reference Type https://news.ycombinator.com/item?id=37305800 No Types Assigned https://news.ycombinator.com/item?id=37305800 Mailing List
    Changed Reference Type https://www.openbsd.org/errata73.html No Types Assigned https://www.openbsd.org/errata73.html Release Notes
    Added CWE NIST CWE-754
    Added CPE Configuration AND OR *cpe:2.3:a:openbgpd:openbgpd:*:*:*:*:*:*:*:* versions up to (excluding) 8.1 OR cpe:2.3:o:openbsd:openbsd:*:*:*:*:*:*:*:* versions up to (excluding) 7.3 cpe:2.3:o:openbsd:openbsd:7.3:-:*:*:*:*:*:* cpe:2.3:o:openbsd:openbsd:7.3:errata_001:*:*:*:*:*:* cpe:2.3:o:openbsd:openbsd:7.3:errata_002:*:*:*:*:*:* cpe:2.3:o:openbsd:openbsd:7.3:errata_003:*:*:*:*:*:* cpe:2.3:o:openbsd:openbsd:7.3:errata_004:*:*:*:*:*:* cpe:2.3:o:openbsd:openbsd:7.3:errata_005:*:*:*:*:*:*
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2023-38283 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-2023-38283 weaknesses.

Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

0.12 }} 0.01%

score

0.46669

percentile

CVSS31 - Vulnerability Scoring System
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