5.0
MEDIUM
CVE-2011-1473
OpenSSL SSL/TLS Denial of Service (DoS)
Description

OpenSSL before 0.9.8l, and 0.9.8m through 1.x, does not properly restrict client-initiated renegotiation within the SSL and TLS protocols, which might make it easier for remote attackers to cause a denial of service (CPU consumption) by performing many renegotiations within a single connection, a different vulnerability than CVE-2011-5094. NOTE: it can also be argued that it is the responsibility of server deployments, not a security library, to prevent or limit renegotiation when it is inappropriate within a specific environment

INFO

Published Date :

June 16, 2012, 9:55 p.m.

Last Modified :

Aug. 6, 2024, 11:15 p.m.

Source :

[email protected]

Remotely Exploitable :

Yes !

Impact Score :

2.9

Exploitability Score :

10.0
Public PoC/Exploit Available at Github

CVE-2011-1473 has a 26 public PoC/Exploit available at Github. Go to the Public Exploits tab to see the list.

Affected Products

The following products are affected by CVE-2011-1473 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 Openssl openssl
: Total Affected Vendor : 1 | Products : 1
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-2011-1473.

URL Resource
http://archives.neohapsis.com/archives/bugtraq/2014-02/0061.html
http://marc.info/?l=bugtraq&m=133951357207000&w=2
http://orchilles.com/2011/03/ssl-renegotiation-dos.html
http://vincent.bernat.im/en/blog/2011-ssl-dos-mitigation.html
http://www.educatedguesswork.org/2011/10/ssltls_and_computational_dos.html
http://www.ietf.org/mail-archive/web/tls/current/msg07553.html
http://www.ietf.org/mail-archive/web/tls/current/msg07564.html
http://www.ietf.org/mail-archive/web/tls/current/msg07567.html
http://www.ietf.org/mail-archive/web/tls/current/msg07576.html
http://www.ietf.org/mail-archive/web/tls/current/msg07577.html
http://www.openwall.com/lists/oss-security/2011/07/08/2
https://bugzilla.redhat.com/show_bug.cgi?id=707065
https://lists.apache.org/thread.html/142b93d261e8ac7c5ceffdce848d622404abc1c286bbc999f43a9e10%40%3Cdev.rocketmq.apache.org%3E
https://lists.apache.org/thread.html/6121becfdd23f9aeb675d5db80616536277d5931d6cde9dca292e509%40%3Cdev.rocketmq.apache.org%3E
https://lists.apache.org/thread.html/8be38d35654441140db8eb3f7433524b3653ac3fdc26e2fa94626a3a%40%3Cdev.rocketmq.apache.org%3E
https://lists.apache.org/thread.html/r13a07a09f98b2841193dbf17a47c7f09b464e0747a1d3e7298ad4c81%40%3Cdev.rocketmq.apache.org%3E
https://lists.apache.org/thread.html/r1e33410bb5c81536e7fe14b51fa83e7bfd9445db61fd10c134792bde%40%3Cdev.rocketmq.apache.org%3E
https://lists.apache.org/thread.html/r298a09a2b98446b27217d719e877c643b6d13fac0bcafe04696a446b%40%3Cdev.rocketmq.apache.org%3E
https://lists.apache.org/thread.html/r3822ad69442291562c2ab41132fc49780d269e8b52deb458b7060f6d%40%3Ccommits.rocketmq.apache.org%3E
https://lists.apache.org/thread.html/r5e595b91f00613dafa635852121d45b161e8b5c3eba4551aeccc6483%40%3Cdev.rocketmq.apache.org%3E
https://lists.apache.org/thread.html/r77fe575893261889b983e067293be72fa1f8c6305ede9fdbc404c514%40%3Cdev.rocketmq.apache.org%3E
https://lists.apache.org/thread.html/r8680f41bcdad13c3f267cb868b45e5fb1f57df8b39d25193f7d66500%40%3Cdev.rocketmq.apache.org%3E
https://lists.apache.org/thread.html/ra95c355827b3c96c8013ed8e0666c851581651be2524f3d28cd4fe71%40%3Cdev.rocketmq.apache.org%3E
https://lists.apache.org/thread.html/rc98eaa3f8223ac75aa5969f717954d8cbc9f3a9d8b7a6156a54fa557%40%3Cdev.rocketmq.apache.org%3E
https://lists.apache.org/thread.html/rf9e8ae0356af3ec4f7780ca651b770721d287d4d55f62f4f754e0a6f%40%3Cdev.rocketmq.apache.org%3E

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).

Profile Photo
kaiiihk/pentmenu

None

Shell

Updated: 1 year, 3 months ago
0 stars 0 fork 0 watcher
Born at : July 27, 2023, 3:53 p.m. This repo has been linked 1 different CVEs too.
Profile Photo
wallaci09/cmd

None

Shell

Updated: 1 year, 6 months ago
0 stars 0 fork 0 watcher
Born at : April 27, 2023, 6:06 p.m. This repo has been linked 1 different CVEs too.
Profile Photo
CVEDB/awesome-cve-repo

None

Shell

Updated: 2 months ago
3 stars 2 fork 2 watcher
Born at : March 23, 2023, 4:32 a.m. This repo has been linked 435 different CVEs too.
Profile Photo
chnzzh/OpenSSL-CVE-lib

None

Updated: 2 months ago
5 stars 0 fork 0 watcher
Born at : Feb. 23, 2023, 5:42 a.m. This repo has been linked 455 different CVEs too.
Profile Photo
Moulish2004/pentmenu_kali_linux_

None

Shell

Updated: 1 year, 9 months ago
0 stars 0 fork 0 watcher
Born at : Jan. 21, 2023, 4:10 a.m. This repo has been linked 1 different CVEs too.
Profile Photo
hrbrmstr/internetdb

Fast IP Lookups for Open Ports and Vulnerabilities

r rstats shodan shodan-api

R

Updated: 5 months, 2 weeks ago
3 stars 1 fork 1 watcher
Born at : June 20, 2022, 1:53 p.m. This repo has been linked 50 different CVEs too.
Profile Photo
DauDau432/pentmenu

Tool Dos/Ddos

Shell

Updated: 2 years, 5 months ago
0 stars 0 fork 0 watcher
Born at : May 17, 2022, 9:51 a.m. This repo has been linked 1 different CVEs too.
Profile Photo
keygood/pentmenu

None

Shell

Updated: 4 years, 2 months ago
0 stars 0 fork 0 watcher
Born at : Aug. 22, 2020, 8:28 a.m. This repo has been linked 1 different CVEs too.
Profile Photo
pruehack12/pentmenu

None

Shell

Updated: 4 years, 5 months ago
0 stars 0 fork 0 watcher
Born at : June 9, 2020, 4:57 a.m. This repo has been linked 1 different CVEs too.
Profile Photo
ABONASRSY/ABONSR-DOS

None

Shell

Updated: 3 years, 1 month ago
1 stars 0 fork 0 watcher
Born at : March 30, 2020, 10:49 p.m. This repo has been linked 1 different CVEs too.
Profile Photo
crelle/pentmenu

分享一款自己常用（好用）的dos攻击工具

Shell

Updated: 4 years ago
0 stars 0 fork 0 watcher
Born at : March 6, 2020, 8:24 a.m. This repo has been linked 1 different CVEs too.
Profile Photo
ataskynet/ataSky-Pent

None

Shell Python

Updated: 2 years, 11 months ago
0 stars 0 fork 0 watcher
Born at : Feb. 27, 2020, 10:33 p.m. This repo has been linked 1 different CVEs too.
Profile Photo
wiaoo/ddos

ddos源码

Shell

Updated: 4 years, 9 months ago
0 stars 0 fork 0 watcher
Born at : Jan. 18, 2020, 3:36 p.m. This repo has been linked 1 different CVEs too.
Profile Photo
XDLDCG/bash-tls-reneg-attack

A bash script that attempts to flood a server with TLS renegotiations by using the openssl client. See CVE-2011-1473 and CVE-2011-1473 for details.

Shell

Updated: 1 year, 6 months ago
4 stars 3 fork 3 watcher
Born at : Aug. 28, 2019, 2:17 a.m. This repo has been linked 1 different CVEs too.
Profile Photo
Mitko1223tm/pentmenu

not by me

Shell

Updated: 5 years, 5 months ago
0 stars 0 fork 0 watcher
Born at : June 2, 2019, 7 p.m. This repo has been linked 1 different CVEs too.

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2011-1473 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2011-1473 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]

    Aug. 06, 2024

    Action Type Old Value New Value
  • CVE Modified by [email protected]

    May. 17, 2024

    Action Type Old Value New Value
  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • CVE Modified by [email protected]

    Apr. 11, 2024

    Action Type Old Value New Value
  • CVE Modified by [email protected]

    Mar. 21, 2024

    Action Type Old Value New Value
    Added Tag MITRE disputed
  • CVE Modified by [email protected]

    Nov. 07, 2023

    Action Type Old Value New Value
    Changed Description ** DISPUTED ** OpenSSL before 0.9.8l, and 0.9.8m through 1.x, does not properly restrict client-initiated renegotiation within the SSL and TLS protocols, which might make it easier for remote attackers to cause a denial of service (CPU consumption) by performing many renegotiations within a single connection, a different vulnerability than CVE-2011-5094. NOTE: it can also be argued that it is the responsibility of server deployments, not a security library, to prevent or limit renegotiation when it is inappropriate within a specific environment. OpenSSL before 0.9.8l, and 0.9.8m through 1.x, does not properly restrict client-initiated renegotiation within the SSL and TLS protocols, which might make it easier for remote attackers to cause a denial of service (CPU consumption) by performing many renegotiations within a single connection, a different vulnerability than CVE-2011-5094. NOTE: it can also be argued that it is the responsibility of server deployments, not a security library, to prevent or limit renegotiation when it is inappropriate within a specific environment
    Added Reference MITRE https://lists.apache.org/thread.html/142b93d261e8ac7c5ceffdce848d622404abc1c286bbc999f43a9e10%40%3Cdev.rocketmq.apache.org%3E [No types assigned]
    Added Reference MITRE https://lists.apache.org/thread.html/6121becfdd23f9aeb675d5db80616536277d5931d6cde9dca292e509%40%3Cdev.rocketmq.apache.org%3E [No types assigned]
    Added Reference MITRE https://lists.apache.org/thread.html/8be38d35654441140db8eb3f7433524b3653ac3fdc26e2fa94626a3a%40%3Cdev.rocketmq.apache.org%3E [No types assigned]
    Added Reference MITRE https://lists.apache.org/thread.html/r1e33410bb5c81536e7fe14b51fa83e7bfd9445db61fd10c134792bde%40%3Cdev.rocketmq.apache.org%3E [No types assigned]
    Added Reference MITRE https://lists.apache.org/thread.html/r298a09a2b98446b27217d719e877c643b6d13fac0bcafe04696a446b%40%3Cdev.rocketmq.apache.org%3E [No types assigned]
    Added Reference MITRE https://lists.apache.org/thread.html/r77fe575893261889b983e067293be72fa1f8c6305ede9fdbc404c514%40%3Cdev.rocketmq.apache.org%3E [No types assigned]
    Added Reference MITRE https://lists.apache.org/thread.html/r5e595b91f00613dafa635852121d45b161e8b5c3eba4551aeccc6483%40%3Cdev.rocketmq.apache.org%3E [No types assigned]
    Added Reference MITRE https://lists.apache.org/thread.html/r3822ad69442291562c2ab41132fc49780d269e8b52deb458b7060f6d%40%3Ccommits.rocketmq.apache.org%3E [No types assigned]
    Added Reference MITRE https://lists.apache.org/thread.html/r8680f41bcdad13c3f267cb868b45e5fb1f57df8b39d25193f7d66500%40%3Cdev.rocketmq.apache.org%3E [No types assigned]
    Added Reference MITRE https://lists.apache.org/thread.html/ra95c355827b3c96c8013ed8e0666c851581651be2524f3d28cd4fe71%40%3Cdev.rocketmq.apache.org%3E [No types assigned]
    Added Reference MITRE https://lists.apache.org/thread.html/r13a07a09f98b2841193dbf17a47c7f09b464e0747a1d3e7298ad4c81%40%3Cdev.rocketmq.apache.org%3E [No types assigned]
    Added Reference MITRE https://lists.apache.org/thread.html/rf9e8ae0356af3ec4f7780ca651b770721d287d4d55f62f4f754e0a6f%40%3Cdev.rocketmq.apache.org%3E [No types assigned]
    Added Reference MITRE https://lists.apache.org/thread.html/rc98eaa3f8223ac75aa5969f717954d8cbc9f3a9d8b7a6156a54fa557%40%3Cdev.rocketmq.apache.org%3E [No types assigned]
    Removed Reference MITRE https://lists.apache.org/thread.html/142b93d261e8ac7c5ceffdce848d622404abc1c286bbc999f43a9e10@%3Cdev.rocketmq.apache.org%3E
    Removed Reference MITRE https://lists.apache.org/thread.html/6121becfdd23f9aeb675d5db80616536277d5931d6cde9dca292e509@%3Cdev.rocketmq.apache.org%3E
    Removed Reference MITRE https://lists.apache.org/thread.html/8be38d35654441140db8eb3f7433524b3653ac3fdc26e2fa94626a3a@%3Cdev.rocketmq.apache.org%3E
    Removed Reference MITRE https://lists.apache.org/thread.html/r298a09a2b98446b27217d719e877c643b6d13fac0bcafe04696a446b@%3Cdev.rocketmq.apache.org%3E
    Removed Reference MITRE https://lists.apache.org/thread.html/r1e33410bb5c81536e7fe14b51fa83e7bfd9445db61fd10c134792bde@%3Cdev.rocketmq.apache.org%3E
    Removed Reference MITRE https://lists.apache.org/thread.html/r77fe575893261889b983e067293be72fa1f8c6305ede9fdbc404c514@%3Cdev.rocketmq.apache.org%3E
    Removed Reference MITRE https://lists.apache.org/thread.html/r3822ad69442291562c2ab41132fc49780d269e8b52deb458b7060f6d@%3Ccommits.rocketmq.apache.org%3E
    Removed Reference MITRE https://lists.apache.org/thread.html/r5e595b91f00613dafa635852121d45b161e8b5c3eba4551aeccc6483@%3Cdev.rocketmq.apache.org%3E
    Removed Reference MITRE https://lists.apache.org/thread.html/r8680f41bcdad13c3f267cb868b45e5fb1f57df8b39d25193f7d66500@%3Cdev.rocketmq.apache.org%3E
    Removed Reference MITRE https://lists.apache.org/thread.html/r13a07a09f98b2841193dbf17a47c7f09b464e0747a1d3e7298ad4c81@%3Cdev.rocketmq.apache.org%3E
    Removed Reference MITRE https://lists.apache.org/thread.html/ra95c355827b3c96c8013ed8e0666c851581651be2524f3d28cd4fe71@%3Cdev.rocketmq.apache.org%3E
    Removed Reference MITRE https://lists.apache.org/thread.html/rc98eaa3f8223ac75aa5969f717954d8cbc9f3a9d8b7a6156a54fa557@%3Cdev.rocketmq.apache.org%3E
    Removed Reference MITRE https://lists.apache.org/thread.html/rf9e8ae0356af3ec4f7780ca651b770721d287d4d55f62f4f754e0a6f@%3Cdev.rocketmq.apache.org%3E
  • CVE Modified by [email protected]

    Apr. 20, 2021

    Action Type Old Value New Value
    Added Reference https://lists.apache.org/thread.html/rc98eaa3f8223ac75aa5969f717954d8cbc9f3a9d8b7a6156a54fa557@%3Cdev.rocketmq.apache.org%3E [No Types Assigned]
    Added Reference https://lists.apache.org/thread.html/rf9e8ae0356af3ec4f7780ca651b770721d287d4d55f62f4f754e0a6f@%3Cdev.rocketmq.apache.org%3E [No Types Assigned]
  • CVE Modified by [email protected]

    Mar. 27, 2021

    Action Type Old Value New Value
    Added Reference https://lists.apache.org/thread.html/r13a07a09f98b2841193dbf17a47c7f09b464e0747a1d3e7298ad4c81@%3Cdev.rocketmq.apache.org%3E [No Types Assigned]
    Added Reference https://lists.apache.org/thread.html/ra95c355827b3c96c8013ed8e0666c851581651be2524f3d28cd4fe71@%3Cdev.rocketmq.apache.org%3E [No Types Assigned]
  • CVE Modified by [email protected]

    Mar. 11, 2021

    Action Type Old Value New Value
    Added Reference https://lists.apache.org/thread.html/r3822ad69442291562c2ab41132fc49780d269e8b52deb458b7060f6d@%3Ccommits.rocketmq.apache.org%3E [No Types Assigned]
    Added Reference https://lists.apache.org/thread.html/r5e595b91f00613dafa635852121d45b161e8b5c3eba4551aeccc6483@%3Cdev.rocketmq.apache.org%3E [No Types Assigned]
    Added Reference https://lists.apache.org/thread.html/r8680f41bcdad13c3f267cb868b45e5fb1f57df8b39d25193f7d66500@%3Cdev.rocketmq.apache.org%3E [No Types Assigned]
  • CVE Modified by [email protected]

    Mar. 05, 2020

    Action Type Old Value New Value
    Added Reference https://lists.apache.org/thread.html/r298a09a2b98446b27217d719e877c643b6d13fac0bcafe04696a446b@%3Cdev.rocketmq.apache.org%3E [No Types Assigned]
    Added Reference https://lists.apache.org/thread.html/r1e33410bb5c81536e7fe14b51fa83e7bfd9445db61fd10c134792bde@%3Cdev.rocketmq.apache.org%3E [No Types Assigned]
    Added Reference https://lists.apache.org/thread.html/r77fe575893261889b983e067293be72fa1f8c6305ede9fdbc404c514@%3Cdev.rocketmq.apache.org%3E [No Types Assigned]
  • CVE Modified by [email protected]

    Oct. 25, 2019

    Action Type Old Value New Value
    Added Reference https://lists.apache.org/thread.html/8be38d35654441140db8eb3f7433524b3653ac3fdc26e2fa94626a3a@%3Cdev.rocketmq.apache.org%3E [No Types Assigned]
  • CVE Modified by [email protected]

    Aug. 01, 2019

    Action Type Old Value New Value
    Added Reference https://lists.apache.org/thread.html/6121becfdd23f9aeb675d5db80616536277d5931d6cde9dca292e509@%3Cdev.rocketmq.apache.org%3E [No Types Assigned]
  • CVE Modified by [email protected]

    May. 27, 2019

    Action Type Old Value New Value
    Added Reference https://lists.apache.org/thread.html/142b93d261e8ac7c5ceffdce848d622404abc1c286bbc999f43a9e10@%3Cdev.rocketmq.apache.org%3E [No Types Assigned]
  • CVE Modified by [email protected]

    Aug. 23, 2016

    Action Type Old Value New Value
    Added Reference http://marc.info/?l=bugtraq&m=133951357207000&w=2
  • Initial Analysis by [email protected]

    Jun. 18, 2012

    Action Type Old Value New Value
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-2011-1473 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-2011-1473 weaknesses.

Exploit Prediction

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

59.76 }} -6.04%

score

0.97790

percentile

CVSS2 - Vulnerability Scoring System
Access Vector
Access Complexity
Authentication
Confidentiality
Integrity
Availability
: